D-,
I can imagine you are worn out by now not to mention the financial burden. My heart goes out to you.
I get strange stabbing pain and numbness mostly on the left extremeties but sometimes on the right feet and hands, headaches and my left eye hurts. I also see stars when I stand up sometimes and have passed out a couple of times. I just attribute it to the chemo and/or radiation. I have had my carotid blood flow checked and other assorted tests but nothing has surfaced.
I agree with Bob (JetAgeHobo) about getting someone to step back and analyze the medicine situation, preferrably a pharmacist. Not just because my father is a pharmacist but because they tend to know more of the neutral stuff (good and bad) about medicine and don't have some fast talking, pleasant person trying to convince them their company has the best drug on the market, if you know what I mean. Make a list of all the meds, dosages, frequency, etc. and run it by the pharmacist. If you use multiple pharmacies, try hard to consolidate to one so they can help you better. I have weaned myself of all regular medication because I just didn't like the effects and interactions.
I know someone that had the nerve block done for a wrist injury. My wife works for a dentist that specializes in head, neck and tmj pain and he does the nerve blocks all of the time. I will ask her to email you tonight.
I hope things get better and I hope and pray for a good day for your mother, your father and especially you! I am so sorry you have so much on your plate right now.
Ed