My breasts are almost always sore, not painful or unbearable, but it's only if my bf or myself squeezes them. Light squeezing is fine, it starts hurting like.. in between a light squeeze and a hard squeeze, if he wants to play with them he can be a bit rough sometimes. I dont feel any lumps in them (my breasts are not big so I could definitely tell if there was a lump) so I'm pretty sure it's not cancerous. I'm not pregnant. Any thoughts as to why they would be sore when squeezed?