I have had ultrasound & mammo early this year which both came back negative.I had this because I had been experiencing pains in my left breast. Then I developed a very itchy spot on the aerola of this left breast. I tried clotrimazole to no avail. The breast is getting big and sore. And I had been having terrible back pains which is confined only on the left side of my back. I also experienced a feeling of numbness on the right breast. I have no history of cancer in the family. I am 41 years old. Could this be breast cancer?