Ok this might sound weird.
Run your finfer along the bottom rib up to the center where it meets your sternum & tell me, is your sternum flat? Like does it just nicely flow over to the other side?

Reason I ask is mine doesn't. Mine seems to have like a tail that is about an inch long. Its always been this way & thought it was normal. But when I was pg with Glenn I was telling DH about how much pressure Glenn was putting on it & it felt like it might snap off. he didn't know what I was talking about so I showed him & he hasn't got it. Neither does a friend of mine who I asked to feel hers. So am I weird with my little tail or is it one of those "some do, some don't" things.

This little bubba is starting to push on it as well.