
Zac Efron says he’s feeling fine after an overnight stay in the hospital … posting a workout pic to show fans he’s already back up and lifting.

Efron writes he’s “happy and healthy” and thanks everyone for their well-wishes. He even adds the date — doing everything to let fans know they took the photo earlier Sunday.
Of course, our sources tell us Zac went through a pretty scary situation Friday … with a couple employees at a private villa in Ibiza having to pull him out of a pool after seeing him in distress.

Anyhoo … we’ll have to wait and see what Zac says about the incident — but, for now, looks like he’s getting back to his routine.

