I have a lump where my vagina fold would normally be flat, on the bottom left side next to my vaginal entrance. It s slightly sore and tender as well as swollen. I do not feel any other symptom other than that. No discovery while peri get or standing. This is occurring after the last time I had sex (which was the first time), but it was unprotected. I am not sure of my partner s sexual history. Could it be and STI, STD, HIV, HPV, etc.?