anxiety and stress
"I started having anxiety and the fear from that (worrying if I was having a heart attack) lead to straight up panic attacks. My DR. gave me to Celexa (20 mg) and after a few days I felt so much better, I didn't have to take my Xanax anymore, maybe 1 a week. It was great and after 2 months I came off.  But about 7 months later my anxiety came back. So I gave Celexa another try, and at (20 mg) for 11 days, I felt in a fog, really tired and still had the anxiety. So after reading tons of posts, I lowered to 10 mg and I felt great!"