Bartholin’s cyst

Hi ladies,

So today after having sex with my man, I noticed a swollen (kinda stingy/uncomfortable) lump on my vag lip close to the butthole. As the nights gone on, I feel as if it’s definitely gone down & is less swollen.

How did this even form?

I’ve never experienced this before. Tomorrow even if it’s completely gone, I’m calling the Gyno . I think it’s Bartholins cyst from what I googled.

Im also peeing frequently & have what feels like cramps.

Is this common ? Normal? What do I do?