It's been nearly 3 months since I had a fairly mild case of Covid. Since then, if I am in a setting with the least increase in temperature, I will start sweating profusely. No exertion required. I can be just sitting or standing outside talking to other "normal" people not sweating at all, & sweat will start just pouring down my face. Very aggravating. (I have also noticed worsening of my life-long tinnitus, plus some occasional balance issues when I turn quickly, but have no idea if they are related. )