From last two months my father is getting one day attack of forgetting things and when that happens his body becomes very weak .it becomes so weak that he can not move his hands or legs normally.His nose starts bleeding. He remains irritated and angry through out this time.after giving some food and some tablet for sleeping he sleeps and next day he becomes normal.he is a
diabetes patienr.his blood pressure is always normal.please help me know what could be wrong with him.