Hour watch symptoms and conditions

I started taking Zoloft October of 2003. I started with 25mg & slowly graduated to 200mg. Over the past year I have gained 25lbs. even though I exercise 4 days a week for an hour & watch what I eat every day. I couldn't understand why I was gaining weight when I was watching so well. I asked my doctor about weight gain with Zoloft & he said that it actually makes you lose weight. I finally decided to check out websites about the side effects & I was so shocked at how many other people had weight gains also. So I decided to take myself off of Zoloft. For about a week I dropped down to 100mg a day but then deiceded to quit cold turkey & have been feeling like crap ever since. I have severe headaches (which I very rarely ever get), constant feeling of nausea, electric zaps that start at my feet & shoot up through my body, feeling when I turn my head too quickly like my brain is slow to catch up with my eyes & I feel like I'm gonna fall if I don't hold on to something or just relax for a minute.

I realize this is my own fault because I quit cold turkey on my own without consulting with my physician, however I want other people out there to know that you aren't going crazy that the withdrawal symptoms are real & really bad.

I just want to know how long before I start to feel normal again without constantly feeling sick on my stomach.