My cat is almost 3 years old and has had major issues most of her life. She is generally a timid cat who does not like strangers or other animals. She has a skin problem which causes her to itch uncontrolably on her head and face only. She has had lab work and is on or has been on several treatments, all of which have been ineffective. Just recently she has started to sleep in her litter tray even when dirty and has urinated on my bed twice. She is seems depressed and I feel she itches due to anxiety but do not know what to do with her. PLEASE HELP!!