I could have written your post. I've been on antidepressants for half of my life, and each time I've tried to taper off, besides becoming depressed, I also have a relapse of TMS in the form of fibromyalgia. The last time I tried this (over a year ago), I was able to get rid of the pain by treating it as TMS, but not the depression. So I went back to my full dose of antidepressant and have stayed on it. I would still like to taper off eventually, but this time I will do it very, very gradually so it may take over a year. I'm hoping that will be the key to success.
I find that I have a relapse of TMS anytime I taper off of any medication, not just the antidepressant--tramadol, propranolol, and gabapentin. It has been hard for me to figure out if the symptoms are due to changes in my brain from going off the medication or are all psychogenic. It is most likely a combination of the two, with some conditioning thrown in.
Whether or not the symptoms are due to TMS or actual changes in the brain, I find that using TMS techniques is the best strategy to address the symptoms. But I think it is always wise to very gradually taper off any medication one has taken for a long time.
Dr. Schubiner's book Unlearn Your Anxiety and Depression has some good information on the difficulty of going off antidepressants.
Thanks for bringing up the topic. It may be a good question to raise in the Ask A TMS Therapist sub-forum.
Best wishes..........