I need advice?!?!?!

Ok so first of all I’m a lesbian, n I really had a hard time choosing wether or not I should post it on here or go to a doctor but anyways straight to the point.....me n my girlfriend had sex a couple weeks ago, n afterwards I noticed that my labia was really swollen n it burned, n it didn’t go down until 2 or 3 days after. I tried to see why it was so swollen but I couldn’t find the problem, n idk wat really caused it because she wasn’t being extra rough with the fingering. So wat can I do so that this won’t happen again, cuz I’m honestly not really good with harsh pain like that down there. So could anyone please give me some advice. I would really appreciate it. 😁