The so-called cringe attack is to feel massively ashamed of past actions that you have personally done so that the suffered embarrassment tricks your body that you're about to have a heart attack. It is followed by episodes of further awkwardness and feeling uncomfortable for the rest of the day.
A: I looked at my yearbook today.
B: And are you feeling nostalgic?
A: Not at all dude... the way I used to dress and my haircut were so awful it gave me a cringe attack.