Okay - let's recap, okay?
You received oral sex like 4 months ago? You tested negative for gon/chlamydia. 21 days after, your meatus was irritated. 29 days later, you had a red sore patch. A doctor said it could be fungal, lotrimin was awful, neosporin helped.
Hsv1/2 came back negative. Swab was negative. You were never at risk for hsv2 from just oral sex.
Now you have pressure in your pubic area that moves down to your testicle, or you had that?
We have told you a number of times that this is not an STD. 1 doc and 3 STD clinics have told you it isn't.
We have suggested that it might be prostatitis. Maybe it's a hernia. Maybe it's guilt.
Have you seen a urologist? I think you need to see a counselor to deal with the guilt of going outside your marriage, because you had a very low risk encounter, and if you have something going on, it's coincidental.