I have hed sex a total of 3 times now with the same guy and this last time I got a headache shortly after we where done and my headache got wors later on into the nigh and into the morning then it went away but I still can feel it every so often now 5 days later, and also I was wondering if the headache and the fact that around my vaginal area it is red and eratated could be signs of and infection or something? I have only had sex 3 times but everytime it herts at first because he is streaching out my vagina, will this go away? And do I have something?