Yep. Insulin resistance that you wouldn't believe- might as well be bolusing water. Then boom sensitivity increases. Pain in the neck it is.
More testing to play round with basal, I've increased the amount of HIIT exercise and weight lifting. It increases insulin sensitivity and I sweat my a@@e off. It seems to reduce the number of random flushes.
I tried hrt but for 3 weeks I felt like I was due on and had the mental age of a 15 yr old crying over Duran Duran. I packed it in, dropped 5lbs in water weight in 4 days.
I also do intermittent fasting which seems to help.
But yes insulin resistance increases at random times then disappears.
I feel your pain- especially when a high is unexplained it's really frustrating.