so I can home today and my labia was very itchy and irritated, I scratched a lil but then sat it out. i watched half a film and when i stood up next I realised that it was massively swollen. like it was filling up with fluid. 

i have not had sex in over an month and a half. it doesn't hurt to pee. 

the itching has happened befor but im worried it has never swollen like this help..