Hello @Inky. I had the same chemo as you: 3 months of TC (4 cycles). I, too had shocking stomach pains, for which my oncologist really had no answer. It didn’t feel like constipation, but perhaps I should have taken more laxatives. That was really my only serious side effect, and I came good after a week, so hopefully you might too.
As to the temperature, my oncologist definitely regarded this as an emergency, and said at 38 I was to go straight to emergency and tell them to start intravenous antibiotics immediately, without waiting for test results. This never happened to me, but I think I would advise not to hang around. Better to be sure than sorry.
My only other recommendation is to exercise as much as you can. I know you won’t feel like it, but it will be worth it in the end, believe me.
All the best.