I have breast cancer and was diagnosed on Thursday. At the moment I know it's the one lump measuring 2cm and have to return 04/11 to discuss treatment. I also have an mri scan booked. Since diagnosis I have been reading everything and now starting to panic as I do have a weak shoulder on the same side as the breast. I have always blamed my handbag. Now panicking that this is a bad sign. Will the mri pick up the shoulder weakness or should I mention at my next apt. Think I am still in shock at the moment. I have two children 7 & 10 such a vulnerable age and I do not want their life to be disrupted by this. So good to discover this blog and see I'm not the only one affected.