I had a rainbow of pain stretching across my ribs. The pain was worse than labour and it made me vomit and shake. I was white as a ghost and sweaty. It can be triggered by pregnancy or after pregnancy. My first attack was when DS1 was 3 weeks old. I went from "feeling a bit off" to lying on the bathroom floor unable to get up in a space of about 5 minutes. Pretty scary. Thank God my mum was over and able to help with DS1.

I agree - see your GP. It isn't going to get better on its own.