I saw my rheumatologist today. She confirmed that my finger bump is very likely the beginning of arthritis, and, unfortunately, there is no treatment to prevent or slow down the development.
I also went to visit my parents after the appointment, since they live near my doctor's office. My dad has arthritis, further supporting the likelihood that I will suffer the same fate. I looked at his hands. His finger joints have prominent double bumps on them, and he has trouble bending them. It's at least a slow condition to develop.
I am hoping that if I continue to use and exercise my index finger - instead of adapting by using other fingers - that I can retain joint flexibility longer and maybe prevent the bony growth from obstructing mobility a bit longer. This is all speculation on my part. The doctor talked about a topical treatment to reduce inflammation. I still have plenty of Zostrix with capsaicin that I can use if it gets "angry".
I completely forgot to mention the eye twitch (Myokymia) today, but it's almost becoming a normal part of life now, it's been so many months now.
I am also going to try to wean off the one prescription medication that I take for FMS/CMP: Cyclobenzaprine. She suggested halving the dose for a few months and watching out for worsening pain or sleep, then halving again and watching out again, before finally stopping it. I'm going to see if I can do it, since the dry eyes and dry mouth are starting to really bug me lately, and it may also be aggravating my atrial tachycardia (heart palpitations). I notice the episodes tend to occur right when I wake up.
I'm proud to report that my doctor said she wishes all of her patients were like me. I'm glad I'm managing this all somehow.