My daugther found a gray boy squirrel.At the time she found him he was 3 weeks old more or less.She has been feeding him with cat formula as she was told in a pet store that puppy or goat milk wasn't good for him.He was excelent without any problem.At 5 weeks he opened his eyes,everything qas perfect.Now two days ago we noted tha he has some problem in one of his leg one.He move that leg too little.Can anyone help us and tell me what this can be?.We are so worry.We live in North Miami,FL