Jamie Dornan Was Hospitalized with Heart Attack Symptoms Due to Caterpillar

Jamie Dornan apparently thought he was having a heart attack and might die last year after he started experiencing tell-tale symptoms for a heart attack … but he was just buggin’ out.

The actor’s health scare was revealed through a friend of his — Scottish broadcaster Gordon Smart — during an appearance on the BBC’s ‘The Good, The Bad and The Unexpected’  … where he told this wild story about him, Jamie and some other pals hitting Portugal last year.

After a night out, Smart says some in their group started to feel really sick the next day — with GS getting sent to the hospital … as he felt tingling in his hand and arm. Smart thought he was having a heart attack … but was later told he’d been infected by a local caterpillar.

Specifically, Smart says he was told he must’ve come into contact with pine processionary moth caterpillars — which have poisonous hairs all over their bodies, and which can infect humans. They’re not usually deadly for people — but they can, in fact, kill animals.

Anyway, he says when he got back to the hotel where Jamie was staying — he saw JD, too, was hooked up to medical equipment … and noted he’d suffered from the same symptoms.

Eventually, both of their symptoms cleared up — and in terms of how they might’ve come into contact with these little buggers … Smart says they seem to be all over golf courses there, which is where the boys were roaming just before coming down with their illnesses.