[nik-]

I had an attack once while I was sitting at work ... I wouldn't deem it a panic/anxiety attack since I was sitting there really calmly until it happened. I have no idea what it was.

Got short of breath, a bit sweaty .. chest tightness. Thought for sure I was about to have a heart attack. Scared me so bad that I went through a bunch of tests and an EKG to see what was up ... turned out I was fine. It sucked balls though.