My doctor just weened me off Prozac while weening me on Celexa. I am now done taking my Prozac and have been taking the Celexa 40mg for about a week. I don't feel any better, in fact I feel worse. I have no energy, I'm completely unmotivated and I feel weak like I have the flu. I really want to give Celexa a fair chance especially for the anxiety which made me feel like I was crawling out of my skin. After this week I'm supposed to up my Celexa to 60mg and then move up to 80mg. Am I not feeling a change because I'm on too low a dose? How much time should I give it and how long until I don't feel like a total blob?