Hypoglycemic?

I think I am hypoglycemic. I have a lot of the symptoms and it explains a lot- fatigue, rapid heartbeat, feeling hungry even when I know I shouldn't, irritability, sweating...and the headaches I have been getting a lot...oh and the time I passed out when I still lived with Amanda. I never really thought about it until I was describing how I felt to one of my friends who happens to be hypoglycemic. She said that's just how she feels. So, I will make a doctor appointment on Monday. Hopefully I can get this figured out.