Soreness in urethra and pain in testicles

[careful1976]

I had unprotected sex during an alcohol fueled one night stand two weeks ago. I asked her afterwards if she was std/STI free and she assured me she was, although didn't indicate if she's had recent screening. Obviously not a great situation to put oneself in, but there you have it.

Since that time (in fact I believe I noticed the first day following intercourse) that there was a bit of an odd sensation when I ejaculated. Not painful, but almost like the feeling of a small air bubble in my urethra on the second wave of ejaculation.

For the first week I didn't think too much of it. I'm a single 40 year old male and I'm used to minor aches and pains. However, I'm beginning to grow concerned as symptoms now include sensitive testicles, minor aches in my penis (primarily urethra), a slight heated/burning sensation on the skin of my penis which comes and goes, sometimes but not always slight pain when I masturbate. Ejaculation sometimes includes a sharp and quick but not overwhelming pain in my urethra. Putting ice on the area seems to help.

No discharge, no pain when I urinate other than my urethra feels a bit sensitive, nothing unusual on the skin or around the head of my penis.

I'm going in for an std screening tomorrow, and intend to also book an appointment with a urologist assuming the results come back negative.

I should also note I tend to stress out a bit when I have unprotected sex with a non monogamous partner, so it's possible that some of the the symptoms are psychosomatic.

In short, my penis and testicles feel almost a bit inflamed and sensitive to heat. Any suggestions on causation are highly appreciated.

Thanks in advance.