Whilst her nose is very dry, I really dont' think it's stuck shed because as I said she had a perfect shed just a week ago. I don't feed live, so it's not an attack from prey either. She must just be rubbing her nose on something, enough to rub it raw: possibly from the dry skin? I'll give her a bath and do a complete go over of her viv to see if there's anything sharp and get back to you all