Since yesterday I've had this muscle cramp like pain between my hip bone and ribs on my left side. It was very intense yesterday that I was crying. I couldn't get up on my own or move without the pain. It started easing up towards later that night and after that I was just uncomfortable. Today I still feel it but since I sit all day. I can feel it getting a little worse. Is this Normal? According to the women I spoke with it happens but I just want to be sure.