Hi, has anyone ever had a lump in side the vagina wall?

I have a marble size lump inside on the left side vaginal wall along with left side ovary pain. I have had ovarian cyst before and I know where the ovary is. I am kinda of scared to what the lump may be. I haven't been sexually active for months now. My periods are heavier than usual.

I have looked it up and found nothing much on this.
If you have experienced this I would love to hear from you.

You sure it's not your cervix?

I am positive its not the cervix, becuase the cervix is in the middle and this on the left side vaginal wall.

You need to go to the doctor and insist on a biopsy. It's probably a cyst, but I had a family member with this (she could feel/see the lump), and it was a cyst on top of a malignant tumor. The doctor insisted it was only a cyst, but he was wrong. But I don't mean to scare you; that is very rare whereas cysts are common. I hope you can schedule an appointment soon and get peace of mind!