Pain question

For the past week or so I have been having pain in my vagina and it's not my pelvic bone it's literally my vagina lip area and it's getting worse to the point that I can barely walk or even move while sitting it is so bad and I tried heating pad down there and relaxing and keeping legs open and just nothing is working and I have a toddler so sitting around all day isn't an option but the pain is severe any ideas why or what could help? I'm desperate and on the verge of going to the doctor.