text: what does it mean to black out for around three seconds and then wake up completely disoriented for a while?   3 things came to mind here:  pregnant low blood sugar heat exaustion.  drink cool water...if it goes away, it was #3 if not, bite something with sugar and protein (reese's pbc, snickers, etc. peanut m&ms) if it goes away, it was #2  if neither of them worked...well...get a check up.