Wintergirl
New member
I can't be pregnant, I am getting my period. But I have a prom dress (today is my prom) and it wasn't too tight when I first bought it but now all of a sudden it's too tight around the ribs. And I was feeling on the spot between my ribs yesterday and it's hard. My body used to have ribs and then curve down where my tummy and hip bones were but it doesn't do that anymore. It goes straight from my ribs to my tummy. I know I haven't put on any weight because it's hard, not fat and I haven't been putting on any muscle. What would cause my ribs to expand?