"i tried fetzima for a week going from 20mg to 40mg. i had the worst headaches, chills, and gi problems. i like to exercise and i was afraid i was going to pass out from being so light headed. i stopped taking it, but then changed my mind a month later and went back on. again, the same side effects even staying on the 20mg. today will be my last day. i can&#039;t live in the bathroom."