What Causes Dizziness Along With Hot Flashes And Excessive Sweating?

Hi, I have been getting dizzy spells that happen just randomly, at any time but seem to occur more so in the afternoon and sometimes after I eat lunch…with it comes hot flashes, sweating (especially sweaty palms), feeling faint/lightheaded, kind of blurry vision and I also have random head pains (not headaches) that can last just seconds, particularly in one spot in the back of my head. Sometimes it can feel like pressure, sometimes kind of sharp or just a weird sensation. I was in a wreck last October and have had head trauma before. I know this could be a variety of things and I’m sure a CT should be involved but was wondering if you could give me more insight to what it could possibly be. Thank you!