Thanks for replying, special_k. Like I said to Perna, my doctor offered to refer me to an NHS psychologist. I'm guessing if I do go private, I'm going to have to arrange everything myself, which is quite daunting! But I've got a pretty good idea of what kind of therapy I'd like, at least, which should help - CBT is supposed to help with both trichotillomania and PTSD symptoms. I want to avoid medication completely if possible - I'm scared it'll change me too much, and also of the side-effects.