I am a 62 year female with HBP, diabetes, and gastroparesis (I have a gastric stimulator). I am having periods of time each day that I get really, really hot and sweat just pours off of me. When this happens I check my blood pressure, heart rate, oxygen level and sugar. They are all within normal limits. I am having to keep the AC really and I still sweat. What could be causing this?? Thank you.