One more thing, I never inserted my oenis, but I did slap her clit with it a couple of times. Thought that should be noted.
You wouldn't get anything from the clitoris slapping, but you could get gonorrhea, chlamydia or NGU from the oral sex.
You could also have a totally unrelated UTI.
You might also be dehydrated or have something else totally unrelated.
The only way you'll know is to see your doctor for testing.