I have a female chameleon who I got form the pet store about a month ago had been really healthy so far. I cam in to feed her today in her reptibreeze tank and the last half inch of her tail is mangled and appears to had been bleeding. She ate a cricket normally and nothing had been in the cage prior, because I know crickets can bite. She appears to be okay and it has stopped bleeding is there anything I can do or will it fall off on it's own?