Have they checked the thyroid, testosterone, glucose, and other blood levels too. Sometimes defeciencies can have an effect, like the anemia being mentioned. I guess the doctors said that's due to low iron levels? Sometimes it's not, and there are many types of anemia, mine isn't due to low iron, and have chronically low hemaglobin, never above 11, and is partially due to the bone marrow suppression, so the protein may help that. I also take folic acid, as advised.

Oversleeping can be a sign of depression. The narcotics can have an effect. I have to take some meds for neuropathy, basically anti-depressant or anti seizure meds, and may take a while to build up a tolerance. I don't take what I'm prescribed since I don't like the feeling. These and other antidepressants can worsen thoughts, and make one even more depressed, and believe they come with that warning, but some do need them.

I was in the hospital, crital care nursing fascility, basically hospice, for 6 months, and they just loved putting you on all sorts of medications to drug you up, some without knowing. I had to ask them to give me a list of all the medications, and cut back own ones not used for life support. I felt much better, had clearer thoughts, slept less, and went home against medical advise. Of course they wanted to keep me drugged up, in their system.

I see no mention of exercise, and may do a world if good, even if it's just light walking.

Good luck.