Sue's flight with Cancer

March 2016 I was diagnosed with Stage 4 Primary Peritoneal Cancer. A very rare cancer. After 3 surgeries, one round of chemo and stating the second round, money for co pays and COBRA Insurance leaves little for anything else. I had to take medical retirement and was placed on SSDI. I've been put on oxygen 24/7 and would greatly benefit having a portable oxygen concentrator. Insurance will not cover this cost. Any help would be greatly appreciated.