🤨Anyone else experienced this Burning and need to wee after sex

So last night me and my boyfriend had sex (nothing unusual). During foreplay he ate me out for a while which happens sometimes but not always. Today though I’ve had a hot/burning feeling down there and feel the need to wee but when I do nothing happens. (Did wee immediately after we finished having sex)

Has happened before when he has decided to go down on me but cleared up with a few days but this is just really uncomfortable.

Just wondering whether anyone else has experienced this and if it is just an imbalance of pH or leading to an infection.