Geodon Withdrawal Symptoms

I was put on Geodon a week ago for skitzophrenia. I've been taking the 80mg twice a day. Because it makes me non-functional mid day due to being so tired, I decided to skip it and see how it would work. I've been shaking very badly all day, I keep twitching and having muscle spasms, and just a few minutes ago I had my first anxiety attack ever. I'm wondering if anyone else has experienced anything like this.