Dear Claire
Zyprexa (Olanzaphine) is a medication that is used for the treatment of psychotic (halluicinations, delusions) symptoms. Mood stabilisers such as Lithium Depakote etc., help with the racing thoughts, mood swings etc. It is rare to see mood swings in a person after zyprexa is stopped. Without knowing your full history it is hard to say what happened to you. I would recommend that you talk to your doctor regarding your concerns
The same EPS symptoms (side-effects) you get when you start a new med can reappear when you discontinue that same med, temporarily. Her former St. Johns Hopkins Dr. told us this and I have observed it with her shaking, neck twitching and constipation as we tried and discontinued different medications. Usually you go down and up gradually unless you're in a controlled hospital environment.
Goodluck