I'm also thinking it could be the Cymbalta...many people can not tolerate SSRI type anti depressants, and wow did they ever fog me over, and I have tried many of them.
I'm also thinking she was weaned way too fast. Is this a doctor set up weaning schedule or her own? She shouldn't be suffering like that at her age, and for a 3 year user, IMHO she was weaned way to fast...from over 200 mg a day to 15 mg in 3 months is fast....10 mg a week would have been more appropriate, and that would put her at 80+ mg a day right about now, and she wouldn't have suffered. Plus she's probably doing PT. My heart goes out for your mother, it really does
I've also read a few studies lately saying SSRI type anti depressants do not work for opiate w.d. type depression. I've heard people say differently though, and doctors sure do prescribe them at the drop of a hat.
I hope your mom gets feeling better....this is a sad story!