Sounds like you had panic attacks. Those can definitely be triggered by excessive caffeine intake and poor sleep which is often a byproduct. But to the best of

Sounds like you had panic attacks. Those can definitely be triggered by excessive caffeine intake and poor sleep which is often a byproduct. But to the best of my knowledge, you cannot actually get a heart attack from drinking coffee. At least not if it is not something completely insane like 100 cups/day.