Bypass on 12 13

For the past 4 days I've had constant diarrhea, along with feeling like I have to urinate every 2 15 minutes, but nothing coming out when I do try to pee. I feel awful and like I can't leave the house. I stopped eating any dairy and it still persists. I'm up until 5 or 6 every morning on and off the toilet. I'm MISERABLE. I couldn't get an appointment until Thursday (5 days away) and was wondering if anyone has had an experience like this and what may have helped. Thanks