I've been diagnosed with crohns and I think its safe to say I'm now at the point where I'm eating but getting no nutrition from my food. I've heard all the arguments about using TPN but without it, my body is falling to pieces and the medication has no effect because frankly I think the diagnosis was wrong an I think its a bit late to want to go back and want to take another swing at things. Who is responsible for this side of medicine and what is the procedure of getting it done?