This is 10 long years of supposed recovery from cancer and chemotherapy and it's left me worse than ever.
I feel your pain. I had colon cancer surgery last year followed by eight months of chemotherapy which I still have not recovered from. My fingers have 80% feeling back but my feet are around 50%. The nerves have been affected by the chemo.
Chemo is poison pure and simple. It'll get rid of what ails you but it can give you more problems as a result. Aside from the appendaches, the chemo has given me a blood clot in the leg which I've since rid myself of. My blood sugar level has been elevated from the chemo also which may or may not be why I have problems with my feet and hands.
But the cancer is gone! So good things do happen. I was only at Stage 1 when I was diagnosed.

So hang in there and keep a positive attitude. It's worked wonders for me and my friends notice it also.
Z