i had a bartholin cyst. it was pretty painful, & i went for a week, & then it was just too much. so my mum made me go to A&E & that night i was on the operating table, general anasthetic & all having it removed. i didn't see my gp at all. i don't want to scare you, but it's definitely worth getting it checked out. they are usually treated with antibiotics, but i had left mine too long. this was 5 years ago & i haven't had any reccurrence.