u/Away-Tonight8800

I found an injured squirrel on my yard yesterday and give him some water his legs seems to be injured but atleast he was walking,and today we took him to the vet who should he will be fine and give him some pain killers and food plus medicine,after some hours the squirrel is totally unresponsive like we even pick him up he doesn't move but he did eat his food and milk and medicine, is it the pain killers affecting him idk what to do I am alone and can't even get him to the vet till parents come