I don't really know. Can you remember if it felt that way 2 years ago?
Personally, I don't have bumps inside my vagina, but that could be normal for you. I have a friend who has something called vaginal rings, there's nothing wrong with her, it's just the way she was made, she's totally fine except for it's hard for her to use tampons. So you could just be naturally bumpy, maybe. I mean, you're not sexually active and you practice good hygiene, I can't see how it would be anything terrible.
It's good that you're going to the gyn though, i'd be curious about it too.