Hi Silverclarity, Atki82, and Jaysmd,
I applaud you all for recognizing that the meds aren't doing you any good and have actually probably done you bad :-)
First of all, the longer you have been on these meds, the more slowly you must go coming off. You will have to take matters into your own hands because your doctor will likely tell you to go off too fast, and the pills don't come in increments that make tapering slowly convenient. See the topic about using a 10% withdrawal method in this thread:
https://patient.info/forums/discuss/depression-resources-298570
These drugs are incredibly powerful and even short term use can be hard to withdraw from. Withdrawal symptoms do in fact last for months, and occur in a windows and waves pattern, such that a period of feeling better will be followed by a period of feeling worse. Depression, anxiety and insomnia ARE withdrawal symptoms, though everyone will have you believing that you have relapsed and need to be on the meds for life. The irony is that long term AD use has scientifically been correlated with worsening depression! Tolerance withdrawal, where the long term use of a sustained dosage leads to the drug not working anymore with depression and/or anxiety arising, is virtually guaranteed.
So, it isn't about the drug being out of your system and all will be well. The drugs changed your brain, and it will take time for the nervous system to adapt back to life without the drug; in the meantime, withdrawal symptoms will occur all across the body. 80% of your serotonin exists/functions outside the brain! So, digestion, nerve pain, tingling, etc. are on the table.
To minimize suffering, the grass-roots folks who have been in the trenches have devised a 10% taper schedule as I mentioned. If you have already jumped off after a too fast taper, you may find relief by reinstating a very small amount of drug and then doing a very slow taper off that after you have stabilized.
As for the appetite, that should settle out, though you have to look also to whether you used eating as a comfort to emotional distress in the past.
Self-care is very important during this time, and that includeds being kind to yourself, perhaps meditation/mindfulness, and self-help cognitive behavior therapy to deal with your way of going that got you on meds to begin with.
Silverclarity, try not to distress too much over the weight issue right now. Try to think in terms of your poor body having gone through the ringer on the meds and now it is confused and needs some time to get sorted out. Do not judge it. I used to be bulimic and had a real hateful relationship with my body. I gained weight on Remeron and it caused me such distress, but then I began to realize my body is not at fault, it is not the enemy, and to show it love and patience. It's the only one we've got!
If you need more support through this time of tapering and withdrawal, join us over at Surviving Antidepressants, where the 10% link comes from. They are a non-profit peer support forum with very experienced folks who will help you understand and navigate through this time in your life.