SUMMARY: Sounds so much better. Still things to follow up on.
The assorted drugs led to side effects that led to dehydration that led to really bad dehydration that led to brief renal failure and two and a half days in the hospital. She went home Sunday morning. I talked to her last night on the phone, and her voice and her words are completely mom again. She's still weak and still has the original pain that the doctors can't explain yet. More investigations forthcoming eventually, but they're taking it easy on her kidneys for a while.
I am so relieved that she's home and back to dealing with "only" severe pain and recovery from all the side effects, not loss of mental capacity and bodily shut downs. I'm sure she is, too. And my dad and my sisters.