I've suffered from severe anxiety for about 4 years now (I'm 19). It has tried ruining my life! It was the reason why I left public high school. Anyways I'm on sertraline have been for almost 3 years. The past 3 nights everytime I close my eyes and feel myself drifting off a wave of I don't know if it's anxiety or what wakes me. It's like a dizzy passing out feeling. And then I'll open my eyes and sit up and I get this bursts of it as well as an unreal feeling like I'm not alive or I'm going to die. I know it sounds crazy. Also me being the hypochondriac I am I start thinking I'm going to pass out and die or I'm having a heart attack or I have a brain tumor or cancer or something. It sucks!!! Especially being so young and seeing all my friends living a normal life starting college. If anyone has felt like this or has any advice let me know. Thanks!!! :)