Is it normal for my ankles to do this? (21F)

Is this normal? Or possibly POTS?

they have heart pain frequently and this morning i noticed this,

Is this normal? Is this a seizure? She’s 3.5

IS MY HEART NORMAL

Vein visibly pulsating on neck- is this normal?

Help Im very itchy and have edema in leg. Im 20

Is this normal

Is this normal?

Can visibly see the pulse in my arm. Is this normal?

Is my eardrum perforated? Or is this normal?

Is my semen normal