EMERGENCY
It's three AM, all the vets are closed so I'm asking here. I need to know what I'm dealing with. I was dealing with something and suddenly my bunny started running around wildly in his cage, actually freaking out from something I couldn't understand. He made a small noise and thumped his leg for few times while I tried to calm him. When I coaxed him out of his cage I realized his one pupil was bigger than the other. I don't know what to do. Heacts like he doesn't know me at all. Can someone tell what is going on because he was literally fine 30 minutes ago.
EDIT: Its passed a little and he's begin to act normal again. I'll take him to the vet tomorrow morning to figure out what's wrong with him.