u/Global-City-8284

I’ve had a large hard mass under my breast tissue ever since they’ve been forming, so I always believed it was part of the process. Only recently I’ve began wondering if it’s normal. I’ve tried searching up breast diagrams, or diagrams for breast cancer and nothing that I’ve found can explain this! My breasts have very little tissue and the rest is this mass. It tends to hurt every now and then around the bottom, currently hurting right now. When I try to feel around it it feels as if the mass is directly attached to my ribs, which is weird. I’ve inserted a picture on what it feels like.

EDIT: I am unable to add a diagram of what I’m trying to explain sorry