Tim Fry was out cycling when he began to have an epileptic seizure.
By chance, he captured video footage of the moment he fell to the ground because he'd decided to wear a head cam that day.
The camera continued to film as Fry began experiencing convulsions and members of the public came rushing to help.
Now, the father-of-one is sharing the footage in order to raise awareness about what it's really like to live with epilepsy.
Fry was diagnosed with epilepsy when he was 29 years old after having two seizures a few years apart.
"This has had a massive impact on me mentally due to the unknown and the worry about when it might happen again," he writes in a blog posted to the Epilepsy Society website.
"I have a three-year-old son, Alfie, and continue to worry at times when I’m out with him alone."
Fry began taking medication for his epilepsy, called Lamotrigine, in February 2014. Since then he's had three seizures that have all occurred while he's been doing sport, but he says his symptoms have dramatically improved.
"I hope the video gives a realistic first person viewpoint of what happens during a seizure and that it will help to make people more aware of the condition," he writes.
"No one fits into one category for epilepsy. It’s just my experiences and views on it. I know others have a much harder time and I’m grateful that I have it fairly easy.
"Finding a good medical consultant has been a massive help."
Find out more about epilepsy on the Epilepsy Society's website.