I found a squirrel in my horse field and i think it has vestibular disease although i'm not sure if squirrels can get it? i have put him in a dark box with food and water but he is tilting his head and running round in circles, i don't want to let him chance the wild as i know he will get into trouble, he is so vulnerable, please help! what can i do? is there any way i can make him better so i can then release him?