Doubt And Anxiety

Hello! A girl writes to you who worries terribly (I hope unfoundedly). My problem is this: I have a slight swelling inside the labia minora - it doesn't hurt (only when I squeeze it hard, I have NO pain when urinating (because the doctor had told me that severe pain when urinating and during the event itself) are extremely strong), nor at other times.It seems that there is something like pus inside, no specific color (very slightly whitens when I squeeze it), it is a solid formation. Some time ago it had reappeared to me, as after a day or two something like pus bursts and leaks (sometimes with a little blood), but no wound remains. It usually appears before or after a cycle. I read everything and I'm worried it's not genital herpes. I had visited a gynecologist when it was swollen again. and he told me that it occurs in some women, as it is not a cause for concern, but a fatty swelling for which there is not even an explanation. I've never seen wounds on my friend's genitals, but I'm still worried. After we had sex, this thing came to me the next day and I am very worried (the eyes are big with fear). Please help me and I accept any advice and suggestions.