Hi Fam- (IF THIS IS IN THE WRONG PLACE< ADMIN PLEASE REMOVE TO ANOTHER)

My Boy (Moby) 8 years old in October (Fox squirrel) as many as you know has been a super active boy even after all these years, great diet (Henry blocks twice a day, viggies, some fruits and a nut (hazelnut from Henry's a day)

Well, this morning He ate and drank and went to his box, not sleeping just lying in there which is not like him at all, he usually spends at least the first 4-5 years of the day roaming around going crazy like a non stop train, today he has been inside all day, I MEAN ALL DAY. I tried to get him out every way I can, he came out and took the hazelnut, ate that and back to the box.Now I am dragging him out and inspecting and behold, one of his fingers on his right hand is GONE, not just the nail tip, the whole thing is GONE. I dont know what happened or how, and I think this is why he has been feeling like this. I am very worried about an infection

WHAT DO I DO. (BTW I dont have a vet)