Hi there. From your history & clinical descripton & the fact that there has been no stimulation of the region for a month (assuming no masturbation
either), it does suggest a local inflamation of one of the many glands in & around the region. Which specific group would be semantics. I would advise you to take a 3-5 days course of an antibiotic like metronidazole
500mg three times daily with food & plenty or oral fluids coupled by a three times daily dose of ibuprofen
(provided one is not allergic to either group) 400mg or 600mg depending on your body weight. You should notice good improvement in 48 hrs. If not, please do visit your gynecologist & get it attended to. The symptoms are not those of any 'classical' STD
nor do they suggest a larger problem. Cheers & Good Luck!