So two weeks ago I had car sex with this guy and my vagina was perfectly fine til after . I began feeling a itchy feeling and then it subsided the following day I wore these jeans that were too tight on my area . The following day I had a swollen labia majora . The itching began again but then I realized it was in my urthrea but it had been irritated because soap got there and it burned when I urinated . Now it just itches and my  urthrea is cleaned . Was it the guy or me causing my own irritation or a yeast infection ? Any ideas and treatments ?