I awoke hot and dizzy the other day, and thought it was possibly Covid-19, but took my temp and I didn't have a fever. But it didn't go away, just stayed feeling flushed and hot; it was as if a hot flash was stuck in the "on" position. It would be easy to assume something hormonal is going on. Maybe they will find out some day that Covid can do something to your thyroid or another organ that regulates the sensation of heat.