I have sometimes felt paralyzed as well --depressed, terribly fearful, anxious and not wanting to do anything at all. The feeling really is awful.
One thing that has helped me (other than seeing MD for meds or help) is to exercise--just a walk in fresh air in nature helps me. It takes an effort at first, but then it gets easier.
Also, I had occasions when there were medical issues that lead to this. In particular, I have/had a thyroid disorder that caused me to be very depressed and lose all energy. The treatment is just to take thyroid hormoone and it changed my life and moods. Blood check up found it easily!
Good luck and Congrats on all the months of freedom from the poison!