I Am 64 Yr Old Female With Type 2 Diabetes.

I am 64 yr old female with type 2 diabetes. We have had.a heat wave for last few a days which I don't seem to be able to handle. It started with a headache that has lasted for a few days, now I am mentally confused and have diarrheal. My glucose numbers do not seem out of whack. I have been drinking water regularly thinking it was heat stroke but the confusion is worrying may daughter