When you are suffering from the disease, you can't eat or pee, much less have a bowel movement, in my case I was with probes for all of this. When I took them out was painful to eat, so I ate things cold and I kept very hydrated.
Subsequently go back to eating normal is a great blessing. I have diabetes and arthritis, which causes me to have a healthy diet, I am also a dancer and I exercise. This helps a lot to get ahead of the trauma, pain and physical changes.