Should I be concerned about this thumb twitch?
My thumb has been twitching/tremoring off and on all day. Happens in like ~30 second bursts or so. Hard to see in the video but it seems to originate in my lower forearm and extends to my thumb, making it actually move. I have health anxiety about major issues like Parkinson’s but I don’t understand the difference between a harmless twitch vs a “tremor”. Thanks for watching!