Hi 57 yr old W M, on occasion & usually when not doing anything very physical, I get light headedness to the point that I feel as thou I might pass out, my hands tremble and I become soaked with sweat, (head & upper body). This has happen few times while in public which is embarrassing as my bald head gets soaked & shirt becomes soaked. I can usually feel this coming on and find a place to sit. It usually passes in 15-20 minutes. I have history of anemic