What could cause fatigue. The cancer itself. Fatigue can be one of the first symptoms of cancer. It could be because there is cancer in the bone marrow and that slows down the production of red blood cells, causing anaemia. A cancer that affects your hormone levels could cause fatigue.
Medicare Suffixes. Hereâs what the letters behind the Medicare number mean: *A = retired worker. B = wife of retired worker. B1 = husband of retired worker. B6 = divorced wife. B9 = divorced second wife. C = child of retired or deceased worker; numbers after. C denote order of children claiming benefit.
Other Medicare suffixes in the âBâ category include: 1  B1 for the husband (62 years or older) of a primary claimant. 2  B2 for a young wife with a child in her care. 3  B3 for a second wife aged 62 or older. 4  B4 for a second husband.