Do I have pre-nodules and is that lump on the right the arytenoid

Muscle spasms?it happens for hours. It happens 2 or 3 times a

Popping in tendon/muscle behind knee

any idea why I get muscle spasms while resting my arm like this?

Lower back pain + deep pulsing sensation in my left glute causing

Quad injury muscle movement

Snake like muscle spasming?

Thumb muscle twitching even intervals

Muscle fasciculations. Help?!

Have muscle spasms in my right leg every day, is it normal?

Are these muscle twitches?

Spasm or twitch in the muscle or nerve under the eye (video attached