I HAVE HAD THIS HAPPEN TO ME 2 TIMES WITHIN THE LAST 6 MONTHS, PLUS YEARS AGO. WHEN THE BLACK OUTS HAPPENED YEARS AGO I WAS DIAGNOSED WITH HYPERTENSION AND GIVEN MEDS. I STILL HAVE HYPERTENSION IN ADDITION TO, HYPOTHYROIDISM, ACID REFLUX, ALL OF WHICH I TAKE MEDS FOR. THE BLACK OUTS OCCUR RIGHT BEFORE I NEED TO USE THE BATHROOM FOR A BOWEL MOVEMENT. I GET VERY SHARP STOMACH PAINS, AND THEN I BECOME LIGHTHEADED, SWEATY, A LITTLE NAUSEOUS, WEAK, MY EARS GO DEAF, AND I START TO SEE BLACK AND BLUE. THE NEXT THING I KNOW I'M PASSED OUT. I WAKE UP ON THE FLOOR. I HAVE BEEN TO THE ER THE LAST 2 TIMES AND NOTHING WAS REVEALED. I WAS TOLD SOMETIMES ITS DUE TO STRAINING DURING BOWEL MOVEMENT, BUT I FEEL ALL THE ABOVE SYMPTOS WHILE I'M TRYING TO GET TO THE TOILET. ANY IDEA WHAT MAY BE GOING ON? IT'S REALLY SCARY. THE LAST TIME I WAS IN A PUBLIC BATHROOM WITH MY 9YR OLD SON WHO GOT HELP FOR ME.