Hi everyone! I am new to this site, just started Phen about 6 days ago. Down 5.2 so far! No serious side effects, a little dry mouth, dizziness, rapid heart beat, but today for some reason the rapid heartbeat is REALLY bad! I didn't sleep well last night (mainly because my neighbors decided to have a very loud party.) When I woke up I was fine, worked out, ate breakfast and now my heart is racing so fast I can actually see it moving up and down in my chest. I am dizzy and freezing. Any advice on what to do? Right now I am lying down and just deep breathing.