The side-effects vary from different medicines. Almost all of them, if there are side-effects, have side-effects for about a week. If they don't go away after a week it is important that you tell your doctor or psychiatrist. Sometimes this may lead to trying a different med that doesn't make you feel uncomfortable.
When I was on meds my Zoloft didn't give me any negative side-effects, however my klonopin made me dizzy and drowsy for a few days after I started. I was on Abilify for a week when I decided to stop taking it because I wasn't sleeping, I was shaky in the way that you've been feeling, and it made me nauseous.
I would give it a week and then talk to your doctor if it doesn't sort itself out. I hope this helps and I wish you luck
