About five days ago a had a one-night stand with a woman I met online(dumb, I know). I've never done anything like that before and have been incredibly anxious about the entire thing ever since. We had protected vaginal sex and she performed unprotected oral on me. She also used a bottle as a dildo. When I turned the lights on, I realized the bottle was bloody, but she did not seem concerned. I've been incredibly worried about the entire thing since the moment she left my room, so much so that I vomited into my sink.
It's also important to note that even before the one-night stand I had been having some stomach pains and a loss of appetite, so some or all symptoms may be completely unrelated--I'd really just like to know if I have anything to worry about, and maybe some answers to some of the things I've been experiencing.
Later that night I dry-heaved a little and spat out about a teaspoon of blood, and became light headed for a period of time. The next morning I experienced some tingling and itching in my groin region, particularly around the head of my penis. The day after, the tingling/itching remained, I became much more anxious about it and lost a lot of sleep over it. On the next day the tingling/itching was replaced with a kind of a stinging pain at the tip of my penis throughout my classes. It felt kind of like a combination of something being inserted into my urethra, and a kind of throbbing ache. This was accompanied by extreme anxiety, to the point of being unable to keep my hands from shaking.
This morning I was feeling much better about it, having convinced myself that everything I've been feeling is a result of anxiety and nothing else. Later, however, I began to feel a bit of pain along the ridge of the head and think I've discovered what looks like these incredibly tiny, flesh colored bumps, right under the ridge. The issue is that I'm not really sure if I'm seeing the bumps or if it's just folds in the skin. I can't really touch them to see if they have texture, and I can only really see them if I pull the hood taut and look at it in just the right angle--they aren't much bigger than flecks of pepper or something. It is in roughly the same area as the pain I've been experiencing, but I can't tell if it is actually the source. And the real kicker is that I'm not even sure if it's anything new or if they've always been there--I've never paid so much attention to my penis as I have in the past four days. I've been searching it on a nightly basis, pulling skin taut, searching every fiber, which could very well account for the pain.
What has also bothered me is that today I have had to urinate very frequently, have been feeling light-headed for a number of hours, and my left testicle has developed a dull ache. I have to wait another couple weeks before I can even have any tests performed, and have been bordering on panic-attacks on a nightly basis. Mostly, I'd just like to know if anything I've been experiencing is worthy of valid concerns or if I'm really just doing it all to myself--or even if my concerns are valid, but may not necessarily be the result of an std.