I m 22 years old and in good health. I don t smoke and am not overweight. Occasionally, I ll get a single heart palpitation. However, today, I bent down to pick something up and I had multiple ones in a row. It really freaked me out and I m scared that I m going to go into arrhythmia and die. I haven t had any caffeine in a few days so that s not the cause. I ve had a really stressful week due to final exams and barely any sleep last night so I m wondering if that s the problem. Earlier in the morning, I took a multivitamin and a calcium supplement (I don t drink milk). My mom told me that her side of the family including her seem to get palpitations more than normal so maybe it s genetic. Anyway, I m still scared and I don t know what to do. Yes, I ve also had quite a few panic attacks throughout the past few weeks.