I've been experiencing a feeling of heaviness or fullness in the vagina, maybe even like things are just very swollen down there. It comes and go for long stretches, doesn't seem to be related to cycle. I've also noticed that at the entrance to my vagina there's a ring of pink (sometimes white) swollen flesh that wasn't there a few years ago, and I wonder if that could be causing what I'm feeling.
Multiple OBGYN's have told me I have no signs of prolapse—one described my cervix as "way up there." I'm 26, never had any children. Have been under-treated for hypothyroidism for a couple of years, which can compromise muscles, but have now been on proper hormone dosage for a few months. Also had severe constipation with mono a year ago, and would push very hard to use the bathroom for 3-6 months. So I still worry about prolapse, even though multiple doctors have disconfirmed it.
What could be causing this sensation, and is there anything I can do to make it go away or ease my mind about the prolapse issue?