Finding out it was cancer

I walked in one day to see my Mom and over heard her making an appointment for a biopsy. Needless to say she wasn't expecting me to be there from the expression on her face when she looked up and saw me standing there. She told me I wasn't supposed to hear that. After hurting her knee a bit ago and still having problems with that the Dr had talked her into doing a vien study. During that study they found a large knot.
Dr B is a good friend of hers and he did the biopsy. He said there were more than just one, he took the largest one out which was about he size of a golf ball. That is was not looking as good as we hoped.
Somehow we all got stage 1 stuck in our heads and was looking on the bright sun shiny side. So when they came back with stage 2 possible stage 4, we were completely blown away. After the pet scan it is in both legs, lower abdomen and in her thyroid. Yet again I walked in her house when she was telling someone on the phone. I had to walk outside because I couldnt handle it. I stood in the side yard and the tears just started streaming down my cheeks. She walked outside and told me I didnt have to hide from her to cry. I want so much to be strong for her right now.