Anyone's vagina itching ?

I don't mean inside, JUST the skin of the opening ?

I've had itchy labia all my post puberty life so I'm used to feeling uncomfortable (docs have never been able to give me an answer why, ivetested negative for EVERYTHING numerous times) but like juuuuust the opening itches like a B**** so when I go to the bathroom a spend a min with toilet paper just itching To get some relief. Going on like day 3 of this . Could it be just from extra fluids/ discharge since I'm sooo close to labor ?