To bring you up to date. I saw the doc yesterday, took in a stool sample today, have a blood test tomorrow. So will soon(!) learn what I have or have not got. He does not think it is anything to do with PMR.
I am vegan so normally eat lots of fruit, not recommended with the 'trots', my emergency diet was to avoid making things worse. Feel much better today. Arranging an appointment is not easy when you might need to rush to the loo anytime. At least living on my own, the toilet is always available. I will let you know what the conclusion is but it seems to be something going round the area.
Best wishes to those in a much worse condition than I am. I know I am one of the lucky ones.
Dawnint