Ok so when I was in 9th grade, about 9 years ago, I would keep getting a tightening in my chest and feel like I needed to just scream, I continued having this issue, and about 5 years ago went to the dr and to a heart dr, the heart dr (forgot what they are called) said I had a "weak heart" and I had a sinus arrhythmia, which is normal in teens. I've had two heart monitors, and he said the "weak" heart was caused by stress. He also said to stay away from medication like pseudophedrine and sudafed, also energy drinks make me more than extremely hyper and I don't drink them anymore because they make me feel like my heart will fly out of my chest. SO to my question...has anyone on here had a similar experience, or anxiety issues, and what do you recommend? My aunt said potassium helps, and I don't want to be put on a drug that will make me like a zombie...but it does still happen every once in a while...I know you guys aren't drs, but I wanted to know what vitamins or herbal supplements could help.