I have a live in boyfriend, and were sexually active, we do oral also, its been 3 day. I notice I had a boil towards the back of my vagina, I'm not sure where it came from. Its kind of painful, Do you know if their infection or a std? Also my vagina been kind of dry. I haven't a menstral cycle in 3 months, I'm 47 years old. I also had the sleeve surgery. I'm worried I gain about 10 pounds. It been a years since, I had my surgery. It this normal?