I've been on Effexor for about a month, prescribed for depression and social anxiety. Having been on the full 75mg dose for a week, I feel terrible; I've been staying in bed all day, and even when I'm up I feel no motivation to do even the basic tasks required to take care of myself. Even eating feels like a huge chore (though I've had a poor appetite for years). I have a constant headache and feel like I can't function around people, even my parents. I know it can take several weeks for the body to adjust to new medication, but the idea of staying this way until then fills me with dread. How bad should it get before deciding whether it's the wrong antidepressant for me?