Hi, wow, I thought I got rid of my anxiety. See, I've been anxiety free for the past half year, but just 2 days ago I started having trouble sleeping. Everytime when I'd drift off to sleep my breath would catch, like I'm holding my breath or something. So I got paranoid and had trouble sleeping the whole night. Tonight it's worse, every 2 seconds I'd have trouble breathing, and of course this triggers panic attacks. I've read about this and I know it's just my brain playing tricks on me, but I just can't seem to calm down. It's frustrating because I want to sleep and this is my second day staying up. Then there's the fact that I've been fine for half a year and I don't want the disorder to come back. I know I shouldn't be scared and this can be stopped if I just try, but currently it doesn't seem to be working, and I'm scared. What should I do?