Here is my vulva and some simple anatomy for your use and viewing pleasure.
I sounds like an old fashioned UTI.
Why don't you go ahead and Pee so the feeling goes away and then have your orgasm?
There's no shame here. Strengthen your pc muscle and move on.
One of the important aspects of building more pleasure in our orgasms is to understand this important group of muscles that acts like a sling to support the important organs in our pelvic bowel.
You might want to consciously begin to tone your pelvic floor muscle.
It sound to me like you are experiencing "female ejaculation."
If by any chance a little fluid upsets some dude, just move along to a guy who is better grounded and more flexible.
Many women who ejaculate also report it is not the same as having orgasm.
Unless you are seriously bearing down at the moment of orgasm, you will not shit, pee or fart.