Injured arm?

I am not too sure is it injured or not.
For one moment, i felt that i can't twist my left arm due to some sharp pain.
But the next moment after warming up, what do you know, i can use it.

Although i can't really see it or feel it, but Pat Senpai said that it was swollen. It is softer (oedema?), it was warmer (inflamation?).

Hmm... how how how... how ah?
Should i wrap my arm, put myself into rest, or should i continue to train?

Today's 一言: Dilemma...