I take Zoloft at a high dose. At one point, when I was at 200 mgs, my doctor and I experimented with taking me off it. I got down to 50 mgs before I had crying spells over everything, so we decided to stick with it after all.
My doctor also used a two-week, step-by-step plan. But he told me that if I had serious physical side effects, I should try alternating days between the higher dose and the new, lower dose. (For example, 25 mgs then next day 50 mgs then next day 25 and so forth).
I never had physical side effects, so I do not know how effective that is.
I hope you feel better!