Could I have some type of prolapse?

I've had a strange and somewhat annoying symptom for a few months that's just recently gotten worse. It feels as though there's a lot more tissue in my now, and that it's loose and has a lot of folds. It also seems like these areas have pockets of air that are released often. It's like flatulence, but from the l opening. Also, whenever I do p normal gas from the rectum, it causes a vibration of the loose tissue and pushes air out of the at the same time. This can happen when my body's in any position, but is most annoying when it happens while I'm walking. What is going on? I'm forty-eight and had a partial hysterectomy four years ago. Could this be related? Is there a procedure to deal with this?