anxiety and stress
"I (VERY reluctantly) began 10 mg of Celexa (for anxiety) for a week, then 20 mg for the next week, and now I've been on 30 mg for a few weeks now. I had anxiety about taking  the anti-anxiety meds!  Honestly, the first week was AWFUL. My anxiety was heightened, I couldn't sleep, bad headaches and felt like something was tickling my brain. By the second week, those side effects were gone. 

My anxiety was resulting in constant physical dizziness, floor "bouncing" (feeling like you're on  a boat/elevator when you're just walking around), racing thoughts, sleeping just to avoid it all, etc. My dizziness is mostly disappeared, and usually the floor feels like it should. PLEASE DON'T BE SCARED! It can be a lifesaver."