Thanks, everyone. You got it, I believe, OH and Connor. My GI actually called out of the blue yesterday and gabbed with me for an hour (!) about
anything I wanted related to GI stuff, UC, the surgery, the upcoming chemo, diet, etc.
He told me he thought it was my body's response to the whole trauma. So I am going with that.
Interestingly, the evening before, I had followed my home nurse's advice and had really pushed water, hydrated, all evening. Other than that I had to get up to pee twice, I had NO sweats. Last evening, time got away from me and although I sipped all day, I didn't drink huge amounts in the evening: one moderate (damp, not drenching) sweat.
I am chugging some water now, will experiment again tonight.