Shortly after the fall took place Simon explained he had woken up feeling dizzy that morning, so he tried to make his way downstairs to get a glass of hot milk, which was when he fell.
Now, Simon has revealed how he has made some changes to his lifestyle in the months since his fall. The TV judge has revealed that he has tried to change his work-life balance, cutting down on late night work calls and reducing the number of meetings. The 58-year-old father also said at the time of the fall he was 'overtired' and that it was an 'embarrassing wake up call'.
During his time in hospital last year Simon was given an 'MOT' and found out there was nothing seriously wrong, however it has encouraged him to reduce his hectic schedule.
Simon is due to return as head judge in the new series of Britain's Got Talent tomorrow (Saturday 14th April), where he will be joined by the other judges, Amanda Holden, Alesha Dixon and David Walliams.
Yesterday we reported the reason behind Simon's decision to press the golden buzzer on this year's series. Revealing one of the acts reminded him of his young son Eric, DigitalSpy reported Simon as saying, "There was this kid and I was thinking, 'God, that literally could be Eric'. It wouldn't be me as the dad, but it could be Eric."
He continued, "There was something about this boy, he sang with his dad and I thought the song they wrote was really cool."
Cute!
Simon went on to explain how he could see Ant and Dec thinking about pressing their buzzer, but he felt he should press it.
"I caught a glimpse of Ant and Dec ready to run down and push the golden buzzer, and I thought, 'No way! This one is mine!' You have to watch this act, I think they are really great people, it's unusual to see a dad and his son, but it worked," the dad of one explained.
Now check out where the child stars of Britain's Got Talent are now:
Simon Cowell reveals how his life has changed following his fall last year
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Shaheen Jafargholi
The Welsh singer impressed the judges with his performance of Michael Jackson's Who's Loving You when he auditioned for Britain's Got Talent in 2009.
At the age of 12 he was asked to perform at the late pop star's funeral and, after the performance, Motown founder Berry Gordy said: "I have no cotton pickin' idea who that is, but if I were still in the business, I would sign him tomorrow."
Shaheen made it to the final of his series and went on to branch out into acting, appearing in shows such as Torchwood, Grandpa In My Pocket, Casualty and EastEnders.
Aidan Davis
Aidan appeared on the talent show in 2009 when he was just 11 years old, and he has grown into quite the handsome young man now, hasn't he?
Aidan appeared on the talent show in 2009 when he was just 11 years old, and he has grown into quite the handsome young man now, hasn't he?
During his audition, Simon Cowell told him: "I think you're better than any dancer I have ever seen. I think you are super, super, super talented."
Aidan is now 19, still dancing and rapping and is a black belt in karate.
His Facebook page says he writes all of his own lyrics, and is in the studio working on new material.
Check out his Instagram (@aiidandavis) for more pictures...
Hollie Steel
Hollie sparked a debate when she appeared on the show in series three in 2009 at the age of 10 about whether there should be a lower age limit for auditionees.
She made it through to the final of the season and finished in sixth place but during her semi-final performance forgot the words to her song and burst into tears live on television.
The singer was comforted by judge Amanda Holden and boss Simon Cowell demanded producers find time for her to have a second try on the night.
After the show she toured with Andrew Lloyd Webber's production of Sound of Music with Jason Donovan and in 2010 released a self-titled album through her own record label BB5 Records Limited.
These days she shares videos of herself singing on YouTube where she has more than 30,000 subscribers.
Ronan Parke
Singer Ronan auditioned for the fifth series of Britain's Got Talent and found himself embroiled in an online smear campaign when an anonymous blogger claimed he had been groomed by Simon Cowell to appear on the show for two years beforehand.
The allegations were proven to be untrue and Mr Cowell signed him up to release a self-titled album of covers, and single A Thousand Miles.
He was later dropped from Simon's record label and is now working with Rosen Music Group on new music.
His website states: "Ronan has so many exciting things coming up."
George Sampson
George impressed viewers with his dancing when he body-popped his way across the stage in the second series.
He went on to win the show and was signed up for some big money sponsorship and advertising deals.
George released single Get On Up On The Dance Floor/Headz Up and has appeared in dance stage shows such as Into The Hoods.
He had a cameo role in film StreetDance 3D and moved into acting with a recurring role in BBC soap Waterloo Road, and also appeared in Casualty.
In 2016 he appeared in four episodes of Emmerdale as part of character Aaron Livesy's child abuse storyline.
Connie Talbot
Connie went on to become a huge success after auditioning for the very first series of Britain's Got Talent despite never having had a singing lesson in her life.
She released her debut album Over The Rainbow in 2007 and went on to release a Christmas record, Holiday Magic.
In 2014 she released an EP, Gravity, and a DVD of her Beautiful World tour went on sale in 2015.
In 2016 the singer released her seventh album, Matters To Me, and a single, Shut Up (Move On).
Jack Carroll
Jack auditioned for Britain's Got Talent as a comedian at the age of 14 in 2013.
He finished runner-up in the seventh series and went on to land television roles in David Walliams' comedy Big School and BBC show Doctors.
The teenager, who was born with cerebral palsy, was also signed up by Simon Cowell to write an autobiography.
Shaheen Jafargholi
The Welsh singer impressed the judges with his performance of Michael Jackson's Who's Loving You when he auditioned for Britain's Got Talent in 2009.
At the age of 12 he was asked to perform at the late pop star's funeral and, after the performance, Motown founder Berry Gordy said: "I have no cotton pickin' idea who that is, but if I were still in the business, I would sign him tomorrow."
Shaheen made it to the final of his series and went on to branch out into acting, appearing in shows such as Torchwood, Grandpa In My Pocket, Casualty and EastEnders.
Aidan Davis
Aidan appeared on the talent show in 2009 when he was just 11 years old, and he has grown into quite the handsome young man now, hasn't he?
Aidan appeared on the talent show in 2009 when he was just 11 years old, and he has grown into quite the handsome young man now, hasn't he?
During his audition, Simon Cowell told him: "I think you're better than any dancer I have ever seen. I think you are super, super, super talented."
Aidan is now 19, still dancing and rapping and is a black belt in karate.
His Facebook page says he writes all of his own lyrics, and is in the studio working on new material.
Check out his Instagram (@aiidandavis) for more pictures...
Hollie Steel
Hollie sparked a debate when she appeared on the show in series three in 2009 at the age of 10 about whether there should be a lower age limit for auditionees.
She made it through to the final of the season and finished in sixth place but during her semi-final performance forgot the words to her song and burst into tears live on television.
The singer was comforted by judge Amanda Holden and boss Simon Cowell demanded producers find time for her to have a second try on the night.
After the show she toured with Andrew Lloyd Webber's production of Sound of Music with Jason Donovan and in 2010 released a self-titled album through her own record label BB5 Records Limited.
These days she shares videos of herself singing on YouTube where she has more than 30,000 subscribers.
Ronan Parke
Singer Ronan auditioned for the fifth series of Britain's Got Talent and found himself embroiled in an online smear campaign when an anonymous blogger claimed he had been groomed by Simon Cowell to appear on the show for two years beforehand.
The allegations were proven to be untrue and Mr Cowell signed him up to release a self-titled album of covers, and single A Thousand Miles.
He was later dropped from Simon's record label and is now working with Rosen Music Group on new music.
His website states: "Ronan has so many exciting things coming up."
George Sampson
George impressed viewers with his dancing when he body-popped his way across the stage in the second series.
He went on to win the show and was signed up for some big money sponsorship and advertising deals.
George released single Get On Up On The Dance Floor/Headz Up and has appeared in dance stage shows such as Into The Hoods.
He had a cameo role in film StreetDance 3D and moved into acting with a recurring role in BBC soap Waterloo Road, and also appeared in Casualty.
In 2016 he appeared in four episodes of Emmerdale as part of character Aaron Livesy's child abuse storyline.
Connie Talbot
Connie went on to become a huge success after auditioning for the very first series of Britain's Got Talent despite never having had a singing lesson in her life.
She released her debut album Over The Rainbow in 2007 and went on to release a Christmas record, Holiday Magic.
In 2014 she released an EP, Gravity, and a DVD of her Beautiful World tour went on sale in 2015.
In 2016 the singer released her seventh album, Matters To Me, and a single, Shut Up (Move On).
Jack Carroll
Jack auditioned for Britain's Got Talent as a comedian at the age of 14 in 2013.
He finished runner-up in the seventh series and went on to land television roles in David Walliams' comedy Big School and BBC show Doctors.
The teenager, who was born with cerebral palsy, was also signed up by Simon Cowell to write an autobiography.
Shaheen Jafargholi
The Welsh singer impressed the judges with his performance of Michael Jackson's Who's Loving You when he auditioned for Britain's Got Talent in 2009.
At the age of 12 he was asked to perform at the late pop star's funeral and, after the performance, Motown founder Berry Gordy said: "I have no cotton pickin' idea who that is, but if I were still in the business, I would sign him tomorrow."
Shaheen made it to the final of his series and went on to branch out into acting, appearing in shows such as Torchwood, Grandpa In My Pocket, Casualty and EastEnders.
The new series of Britain's Got Talent will kick off with the usual audition rounds, showing some of the best (and worst) talent Britain has to offer in the bumper one hour and 25 minute episode.
As the auditions for the 2018 series were filmed in January and February, with both Ant and Dec, the pair will appear in the precorded footage, however it will only be Dec in the live shows.
The new series of Britain's Got Talent airs at 8pm on ITV on Saturday 14th April.