I had sex yesterday afternoon and when i peed afterwards it really burned and the inner lips became pretty swollen. I took a bath and they stopped hurting significantly but where still swollen. The swelling went down over the next few hours and i didnt notice anything wrong until this morning. When i woke up to pee, it felt as though i had sharp knives stabbing the inner lips of my vagina while i urinated. It was very painful urinating and wiping but i don't notice it afterwards, only when i touch it. What's going on? Please help.