I honestly think that the swollen labia is caused by the fact that u werent as wet as usual, i had that before , i woke in the morning after having sex the night
before with a
swollen labia, i went straight to the walk in clinic they put me on a antibiotic, and said the swelling was from the friction, but also did u use a condom cause if u did, it might be an allergic reaction, i hope this helps