Do goto your GP and get a referral to a gyno. I also have the feeling of a lump just on the inside of my front vaginal wall. It is a minor prolapse to do with trauma from my first birth, my pelvic floor just being ok rather than fantastic and reduced oestrogen due to breastfeeding. I need to see a physio to work on my pelvic floor region and use oestrogen pessaries (I assume till breastfeeding is over). I did have to go in for a day stay to under so they could check things out.