Early Symptoms of Pregnancy

Every woman has different experiences with pregnancy symptoms. I feel sick a LOT. I have only thrown up about 5 times since I've been pregnant, but I feel nauseated about 18 hours out of every day, ESPECIALLY if I don't eat every 2-3 hours. Being hypoglycemic before pregnancy, my blood sugar can get out of hand, but as long as I eat right and often I keep it under control. I feel tired all the time. I have to get at least 10 hours of sleep or I feel bad, and I need a nap too if I've been really active. I get headaches from time to time, and I get lightheaded and dizzy. I've made a promise to myself that I will not take medicine unless my symptoms are extreme, and so far I've only taken 2 tylenol and 2 dramamine. I also get pretty moody from time to time, and cry for no reason. Well, I guess there's a reason: I'm pregnant.