Suggest Medication For Constant Headaches,dizziness And Pain During Periods

I have some many problems that I don't understand. I feel cold all the time, feverish, constant headaches, dizziness, flue and many other unhealthy conditions. and this usually comes when ever the stomach pains me what should I do. Another question is that when ever I have my periods, I feel alot of pain and there after get inching in my vagina. help.