About hot and cold flashes.
Because my sex hormones declined one by one, I could see clearly the difference between hot flashes caused by low progesterone and hot flashes caused by low estrogen. My peri it was period when my the first hormone progesterone dropped down, estrogen still remained high enough. I was feeling constantly warm and hot flashes all were about excessive sweating and feeling too hot. In meno it was estrogen, which started falling down dramatically, I experienced mix hot and cold flashes, hot flashes it was about to make my face and neck red and feeling hot, then suddenly all changed and waves of cold flashes arrived, I felt very chilly inside and I was shivering. The worst it was at night, 1 min I was hot and another min I was cold.
But I did like cold flashes in summer and hated them in winter.
After all I would say hot flashes in peri, when low progesterone was responsible for that, where the worst for me.