Just over a year after he collapsed at the Millrose Games in New York, Jamaica’s Kemoy Campbell experienced another harrowing experience on Tuesday; this time while driving.

Had it not been for an Implantable Cardioverter Defibrillator (ICD) implanted in his chest last February after his collapse in New York, this story might have been about a tragedy.

Campbell, who has since retired from distance running, posted in his Instagram account on Thursday that he was driving when he began to pass out. Luckily, the ICD that was implanted in his chest, shocked his heart back into a normal rhythm.

He said that he was then able to pull over and call the emergency services.

He has since undergone tests including X-rays and Echo scans and an MRI as doctors try to determine a course of treatment for the Olympian.

On Saturday, February 9, 2019, Campbell collapsed after stepping off the track while running as the pacemaker in the men's 3,000 metres.

He fell unconscious and emergency responders worked for several minutes to revive him before transporting him to the Intensive Care Unit at the nearby New York-Presbyterian/Columbia University Hospital where he spent the next three weeks undergoing tests.

However, doctors were unable to determine what made him collapse and eventually pass out.

Campbell would eventually announce his retirement in September on the advice of his doctors.