To your question about trigger finger. Yes, I've had that. Thumbs, that is. For most of my life, my thumbs locked especially overnight, and I had to click to release them. They were not bothersome or painful , though, and never gave it a second thought. I thought everybody has that. About a year before diagnosis, I broke a bone that is between the wrist and the thumb. While I was getting therapy my thumb was overworked and became swollen and painful and the trigger became very painful.
When I got diagnosed with Lems, I was immediately started on plasmapheresis and the triggers disappeared. One of the ways I can tell I need more treatment, other than shortness of breath and overall weakness, is that the trigger thumbs return.