rhonni, very strange indeed!! The only experience that I have with cats losing hair is one of my friends has a cat that loses hair when she is stressed out. Strange, but true!! Has anything changed to stress your cat out lately? He has a 7 month old sister. Did this start after she came? Hair loss can also be an allergic reaction. That is a possibility also. Is is possible for you to have a travelling vet come to your home? My cat Scooter is the same way in vet's offices, and I hate to take him there because it's embarassing how bad he acts! He's so scared and becomes mr. wild kitty. The vets usually have to sedate him just to do a routine exam! Good luck and let us know what you find out! Welcome to Pet Talk!