Excruciating pain "down there"

I have been having a great deal of pain on my vagina in the past few months. The last time I went to the doctor was maybe two months ago and they couldn't even get the dilator in me to look at my cervix. I was treated for gonarrhea a month prior to the doctor's appointment (shot and pills) so I'm wondering if it's the gonarrhea? If it's back or if it's something else? I am pretty thin and I'm kind of boney so could it be pressure from that? Please help!