Actor Jamie Dornan was hospitalized with heart attack-like symptoms after an encounter with a toxic caterpillar, according to friend Gordon Smart.

During an appearance on BBCs The Good, the Bad and the Unexpected radio show, the Scottish broadcaster explained how both men ended up with racing hearts and arm discomfort during a golf trip to Portugal last year.

After a night of drinking with the boys, Smart said he began feeling a tingling in my left hand and tingling in my left arm, symptoms which are normally the sign of the start of a heart attack.

He was taken to a local medical center, where doctors told Smart he had a heart rate of 210 BPM and sent him to the hospital. Only later, Smart learned that Dornan had also checked into the hospital after coming down with the same symptoms.

While doctors initially blamed the health scare on too much caffeine and alcohol during their getaway, a week after the incident, Smart said he got a phone call from the doctor who asked if the group came into contact with any caterpillars while on vacation.