SOMETIMES I ALL OF A SUDDEN GET SO TIRED, I JUST FALL ASLEEP. CAN T GET MYELF WOKE UP. WHY AM I DOING THIS ? I HAVE DIABETES AND HIG BLOOD PRESSURE AND RESTLESS LEG SYNDREME, OSTEOPEROSIS, LOW B-12, ACID REFLUX, NEUROPATHY, CHOLESTEROL,DEPRESSION AND FLUID, AND I AM OVERWEIGHT. I WEIGH 198 LB S.