My anxiety has run so bad that I feel my heart and think it’s not beating properly. It feels like it is beating millions of times when I breathe in, but it’s not. It just feels like it’s contracting, because my pulse is still slow. I don’t even feel palpitations or anything, I just constantly need to find something to be worried about. Has anyone else steeped this low? And is this normal for a sinus arrhythmia?