Hello! Im a 22 year old female who just got prescribed 20 mg prozac for derealization and anxiety. I am not depressed whatsoever. Am I at possible risk of developing serotonin syndrome if my serotonin levels are fine? If I'm not depressed, then I believe my serotonin is fine and I don't want prozac to mess up my brain. And one other question, my directions for my Prozac is to take 5 mg for the first 7 days then 20 mg afterwards. Would prozac still be beneficial if I was to only up my dosage to 10 mg? Jumping from 5 mg to 20 seems like a lot ! Please any experiences or opinions are highly appreciated.