Hello
I agree with daniel78 in the answer to your second and more important question.
The answer is no.
Lots of threads on this in this forum if you have a look - basically if you've had sex with a condom you don't need to worry unless you develop sores or blisters. This could be HSV (Herpes) - low risk of transmission, or Syphilis - even lower risk of transmission.
You are at zero risk of any of the urethral type infections or anything which could cause your testicle to ache.
So, no - don't be worried!