Isn't Red Bull full of caffeine?

Caffeine is what was causing mine, back in my 30s. I also had a high stress job, and I lived on Diet Coke. I had an EKG at one point, and the doctor said I had what is known as a "juvenile" heart rhythm. (But I didn't have palpitations during the EKG.) IOW, I'm young at heart!

I hardly ever have them now, but I don't drink diet drinks anymore--just unsweetened iced tea. I'd definitely get it checked out.

Karen