ever since I was pregnant, when I masturbate, it seems like a lot of air goes in (or something), because after I'm done, whether it be while cumming or after when I pee, I do a LOT of queefing... what could this be from? Some background: I'm 9 months pp, have had sex only once since (things have been awful in my relationship), and I had a c section. Has this happened to anyone else?