I had endometrial cancer Stage 3c2 and grade 3 tumor in 2007. i had surgery, chemotherapy, radiation, brachytherapy, and more chemotherapy. As a result the cancer was stopped in its tracks, but I have peripheral neuropathy in my legs and feet as a result of the high does chemo. I have used a walker ever since then. The COPD was diagnosed in 2014. I had already been using a CPAP since 2002.