I Have Gastroparesis And C-diff Colitis. I've Lost Over 20

I have gastroparesis and c-diff colitis. I've lost over 20 pounds in 6 weeks. I'm 5'7" and now weigh 120ish. Medicines are not working for the GP. I've been on vanco for 10 days so far and still have diarrhea. I'm losing hope. I'm trying to get into shands hospital. I don't want that gastric stimulator thing, prefer a J tube. But how long before this c-diff thing goes away?