question: hi, for the past couple days now i havent been able to keep down my food. everything i eat i feel like its just sitting in my stomach and not digesting at all. i sometimes purge to make it go away. and other times i will throw up on my own. ive also had constipation and i feel as though im losing a lot more hair than i usually do. also, i have a stuffy nose and my lower to middle back has been hurting me. i havent been able to go to the doctors, so i was wondering if you can tell me what you think is wrong?