"i started taking pristiq 50mg for major depression, major anxiety, chronic pain. i took it first day and it was great! first week sleep, headaches were rough but energy was good. gradually started decreasing by itself as i kept taking the pills. 9 month&#039;s later i was still taking the pills but i was dizzy, getting brain zaps, crs, tinnitus, major anxiety, non-stop migraine for 2 months, bed rest, and had to go to psych hospital. psych. md upped to 100mg  pristiq that lasted a week. my whole spine was hurting and now i am switching over to a new snri that i am not happy about. and still on withdrawal from pristiq. "