I cant figure out whats wrong. i been geting sick every other day. systoms are headache,(numb nose, finger tips, lips) i lose my vison/ see spot and blury also cant focuse.and i get very tired. i also have trouble thinking when it gets realy bad. head starts huting very bad and light hurts me bad. seems to happen more when i dont get alot of sleep or eat right. I hav had this problem my hole life and it is geting very bad latly. i just found out it helps alot when i eat sugar like a candy bar when i start geting the symtoms . what should i do. IV had my glocuse tested before and it has always showed below normal. my uncle did hav diabeties and my granpa so it does run in the family. I realy think somthing is wrong. please help?