Effexor is no longer effective so PCP thought I could go back to Prozac (generic) which was the most effective anti-depressant I started with. Not depressed as much as general sense of blah-ness, lack of ability to find happiness, etc. To ease the process, he stopped the Effexor and put me on 75 mg of Wellbutrin for 10 days. Then I will switch to Prozac. Since the switch about 6 days ago, my emotions are at the surface, can't sleep through the night, have a "buzzing" in my ears, and pretty much not loving life! Is this normal? What can I expect when moving over to Prozac in a few days?