Not all of them are pulling out fur, just mama kitty and she has been doing that for a long time...way longer than the chin thing. This chin problem started after I got Buffy a couple months ago.

I took Mama to the vet about pulling out her fur because when she started doing that is when she all of a sudden had a problem jumping. She would fall everytime. So I took her in and they gave me antibiotics which made her be able to jump again but the vet didnt say anything about the pulling out fur.

yes their chins look like that picture of your kitty

thank you for all of your input, I will try all of the suggestions.