could these symptoms be breast cancer

Although you got the "all clear" two years ago, if you have a persistent lump in your breast, you should see a breast surgeon for a careful breast exam. A painful lump may be a sign of an infection, but a good physical exam by a physician would be a necessary fist step in figuring out what is going on. Many lumps in the breast are benign, but your doctor may want to do additional testing (for example, a repear mammogram, an ultrasound and/or a biopsy).