A few days ago, I noticed the top joint of my right thumb began "clicking" when moved. There had been no injury and there was no pain. The click could be seen as a jerking movement.
Then that joint quit clicking but the next joint down was somewhat tender to the touch. The joint where the thumb joins to my wrist was unaffected.
I also noted this thumb was 25% larger than my left thumb (especially in the section between top and middle joints).
I take no medicines. Only recent occurrences: 1. root canal end of Sept after cracking a tooth, followed by a temporary crown being put on the day the click began. 2. 4 papillomas removed from my eyelids 3 days before clicking began.