why not just go and be seen then and get answers for peace of mind?
blood on the tp after wiping was probably hemorrhoids.
I also forgot to post that I had blood on some toilet paper after I went to the bathroom (#2). This also really freaked me out. I'm convinced I have something, but also think it could be aniexty.
the risk of a std from unprotected oral is very low.
you can go now for basic urine testing if you need the peace of mind but odds are if you describe it was slight burning, it wasn't std related.
grace