Is this a canker sore? (16, M)

is this a pimple or something serious? (more in comments)

gross video, but anyone know if this is normal? one side of my

Severe throat pain

What’s wrong with my knee/leg

Internal hemorrhoid??

Possibly parasites?

17m with stiff, cracking, painful wrists.

weird red spot thing on tip of penis

30M I’ve been able to produce liquid above my right nipple

HELP white strip on throat

What's this bump