vaginapagina | Is it a YI or something else?

I looked at the YI link and while it was very informative, it was unable to answer my question, exactly.

Situation: Yesterday I wore a pair of rather tight cotton underwear (it was laundry day and these are like a size too small). Throughout the day, I would get sudden, intense itching feelings more around the area of where my urethra is than my vulva/vaginal opening is. The feeling came and went all day and the episodes lasted a few seconds at a time. I did not have any discharge on my underwear. By early today, I had changed into looser, size appropriate underwear. The itching episodes have become further apart (like four-five hours apart) and are a little less intense. However, the itchy feeling has moved down from my urethra area towards my vulva-around the top of the lips, closest to the urethra. It also feels slightly burn-y or raw-but that may be due to trying to relieve the itch.

Right before my period started on Jan 4, I had a couple symptoms of a UTI (full feeling, slightly more frequent trips to the bathroom with urine expelled, and one instance of the urge to pee without actually being able to void any urine) but that cleared up within 24 hours.

Is any of this related? Do you think I could have a YI or something else?

I'm wondering, really, if it's possible that the UTI I (probably) had a week ago has lead to this YI and/or if wearing tight underwear for one day was enough to cause the itching. I generally wear comfortable, cotton underwear and do not wear tight pants. I am in a committed, monogamous relationship (married) and have been for several years. My period ended Jan 7.

Thanks in advance!