What can cuase my incredibly debilitating sleep disorder? I'M 47, JUST IN THE PAST YEAR I HAVE BECOME AWARE THAT MY SLEEP PROBLEM IS ACTUALLY "REALLY BAD"....I CAN STAY AWAKE FOR UP TO 5 OR 6 DAYS SOMETIMES,..IT HAS CAUSED A HEART ATTACK AND 4 REALLY BAD SIEZURES AND I WAS HOSPIATLIZED FOR ALL OF THESE THINGS......I'VE ALWAYS HAD A SLEEP PROBLEM BUT IT DIDNT USE TO EFFECT ME THIS WAY.  AFTER 2 AND A HALF DAYS I GET A METALIC TASTE IN MY MOUTH (which goes away)AND MY SKIN FEELS TIGHTER ON MY FACE AND ARMS AND HANDS. I HAVE SMALL SIEZURES AND TRIP OVER MY OWN SHADOW,....MY SIGHT IS STEADILY FAILING AND I HAVE GAINED LIKE 45 POUNDS IN JUST THE PAST YEAR.......I WANNA KNOW WHAT IS CAUSING THIS TO HAPPEN TO ME,....I'D RATHER BE DEAD THAN HAVE ANOTHER SIEZURE LIKE I HAVE IN THE PAST YEAR....MY DOCTOR HAS ME ON XANAX AND SEROQUEL AND NOW I'M ADDICTED,...I'M SCRAED TO DEATH TO HAVE ANOTHER SIEZURE LIKE THE ONES I'VE ALREADY HAD. SOMEONE CLUE ME IN ON WHATS WRONG WITH ME.

Summarized question: What causes inability to sleep?