"i&#039;ve been on fluoxetine for about 7 weeks now. i started at 10mg then went up to 20mg after a week. the side effects were terrible the first several weeks. extreme fatigue, vomiting, anxiety, major twitching. however i chose to stick with it and hope for the best. the side effects started fading after about 5 weeks and i also started taking the meds at night which helped with the daytime fatigue. i can now say my generalized anxiety has almost disappeared and i&#039;ve felt improvement with my mood and have become more positive. my doc has upped my dose to 40mg so hopefully this brings even more results. i encourage everyone just starting this medication to try to make it through the start up side effects"