Does it sound like I might have herpes?

Obviously I need to get a test done, but I want to know what people think. About 3 weeks ago I had unprotected sex with a guy and two days later I had a fishy discharge but just for one day. Then about 3 days ago I heard some people talking about him and how he has herpes (but you know how people are always spreading rumors about others). So I've been freaking out! I don''t know if it's all in my head but the last 2 days my vagina has been a little tender. Not burning or itching so much, just a bit tender. Last night I spread eagle in the mirror and there was a white bump and redness on my inner labia(?). I almost had a heart attack. A few hours later I looked again and it was still there but I took a kleenex and barely wiped it and it came off. So I don't know if it was a fuzz or something? But the redness is still there a bit and the tenderness, but no other bumps or blisters or anything. The guy swears up and down that he doesn't have herpes and I don't know if I should believe him or not. He leaves next month for prison for 6 years so he proli doesn't care who he burns. If I have herpes I don't know what I'll do with myself! HELP! What do you think it is?!