Depokate symptoms and conditions

Ive been on Seroquel for quite some time now, I asked my doctor too get me off. I am also on Lithium and Welbutrin. I have lost 45 pounds. Which isnt a horrible thing but with out Seroquel I am awake all the time. I stay up for days. After day three i break down and take a Seroquel and wake up with the worse body aches ever. It feels like someone beat me up with a metal bat and put me back in bed. If I don't sleep for at least 11 hours I cannot get up and function much less do any daily activities.It also makes my depression worse, on top of my lithium. The bodyaches I cannot do any more.