Best thing is to see the dr. I had a section with my first so had no vaginal problems , its the same as beofre I was pregnant, but I do know that some people do experience a prolaspe, which is where some of the cervix, or some peoples bladder protrudes out of the vagina, a feeling like your insides are falling out.
It may not be, but the best thing is to get the Dr to have a look.
Good luck