I recently had an anxiety attack..Or at least it was 2 weeks ago..The doc put me on ambien to help me sleep because I would freak out because it felt like I was goign to die. I then went to go work out for the first time in 3 weeks today..And im only 19...I could not feel my heart beating fast at all..My breathing wasnt really even going with my heart. I was still okay but it hurt my chest, heart and neck and I could feel my heart throbbing hard in my neck. I looked down at my chest after I worked out and it was thumbing up and down pretty hard and fast like it wanted to come out. Thats not really cool..Can a panic attack have after effects of things like these?