Why does my thumb sound like this? I’m not cracking my knuckles.

LOUD, thumb twitching, have lump in upper arm thats painful to

Thumb twitching

Seeking Advice for Persistent Finger and Thumb Pain/Deformation

Can someone tell me what’s going on with my thumb?

left thumb twitching, while finger is bend. happens like once

Thumb twitching and constant shooting pain

Fingers in right arm twitching

Thumb muscle twitching even intervals

Thumb twitching after flexing

Thumb Twitching

Thumb keeps twitching