My bruised breast is causing constant pain. i have trapped air/liquid above both breasts. I have got a bit of yellow bruising under one arm pit and I have a small purple bruise under the breast that appeared yesterday. The bruised breast is a lot more sore and painfull than the other and is slightly more swollen and gets shooting pains. Is it a seroma/hematoma? My right breast with the bruise under it is causing me a lot of pain and the left is numb.