Yep been there done that. Ive had my elbows and wrists lock on me. My CRPS is in my left leg and right knee now, not my upper extremities. My left thumb locked on me and was completely numb for a week once. I couldn't write anything down because I'm a lefty. When I wrote with my right it looked like a kindergarteners writing lol. I still like to write using a pen and paper. It really sucked bec I couldn't do my cross stitching.