I am type II diabetic and take Metformin 1xday; I have esophageal barretts, GERD, non-alcoholic esophageal verices, portal hypertension, and I suffer from sleep spells. Been to a neurologist, and I do not have narcolepsy, though my symptoms present as such. When the sleep spells hit me, it feels like I have been heavily drugged and I cannot stay awake. The weird part is that the spell is sudden onset and ends exactly 3hours later. My docs at the Veteran's Hospital cannot seem to diagnose the problem. Anyone got a clue.