So last night I went out with some friends to a night club & I was standing up I started feeling light headed and when I closed my eyes I seen black. I felt like this once before but didn't black out .. Last night I blacked out and alimony fell to the ground but my friends was there to catch me.. Scariest moment of my life I could hear everything around me but I couldn't see and they said my eyes was open. Drank water and sat down felt completely better... I freaked everybody out. Anyone having similar issues and found out why? Will be telling my DR at my next appointment