I forgot to add
I had a urine test 7 days after exposure and it came back negative - but the symptoms still occur.
Did I get the test too early? Should I get tested again?
Would G, C, NGU show on urine 7 days after potential exposure?
Yes, at 7 days, G, C, and NGU should show. Did you wait at least an hour from your last urination before giving your sample? Had you taken any antibiotics in the few weeks prior to testing? Did you give the first part of your urine stream?
The other possibility is that this isn't related to the oral sex, and the timing is just coincidental, and you have an inflamed prostate. This can happen at any age, but the chances go up as you age.
You posted about some similar symptoms back in June, and again in December. Did those resolve, and come back, or have you had them this whole time? I think it's time you see a urologist, or if it's anxiety, then to stop seeing sex workers, and maybe a therapist to work through why you keep seeing them when it causes such anxiety.
Definitely rule out physical causes first, though. That's important. See a urologist, and let us know what happens. :)