1. Based off this exposure what risk is NGU and should I go off testing for it? 

2. Upon close inspection of my urethra and opening I see some bluish coloring that I believe could be a superficial vein or something. It sometimes is less blue and more red but it varies. Would this be anything of concern?

3. Can I move forward without worry of exposing anyone to anything based off my negative results and no real symptoms? basically if I did get something would it have shown up by now? 

Thank you

Your present symptoms are typical for anxiety magnifying trivial symptoms or normal body sensations that otherwise would not be bothersome and probably not even noticed. You're paying too close attention! While NGU indeed can be acquired by oral sex, its symptoms are discharge from the penis and sometimes uncomfortable urination, beginning within 10 days of exposure, not weeks later; and the stmptoms do not include the sorts of symptoms you describe. Further, NGU from oral sex is harmless, and also harmless for sex partners. 

1. Your risk of NGU is near zero after a 10 second exposure, and if it were to have happened you would have had typical symptoms soon after the exposure, i.e. 4 months ago.

2. This description sounds normal. You're looking too closely and paying more attention than necessary to the appearance of your urethra.

3. Yes you can move forward without worry. Nothing is wrong. If you remain convinced otherwise, see a urologist.

I hope these comments are helpful. Let me know if anything isn't clear.

HHH, MD

Thank you!