I just spent the last 8 days with my dad, including 5 nights sleeping in a hospital chair. He has multiple myeloma, a rare cancer of the blood plasma that attacks the skeletal structure. At this point, it has attacked both shoulder blades, his ribs, sternum, and several vertebrae. Unfortunately, it is considered incurable. Given his age, a bone marrow transplant is not an option, so treatment is aimed at slowing the progression of the disease, controlling pain, etc... Interestingly, he told me to check out a file in his home office dealing with Agent Orange. It turns out that the VA assumes that multiple myeloma is attributable to exposure to AO. Dad had been tracking AO because he was stationed at Cam Ranh Bay, through which AO was shipped into Vietnam. A lot of the people he knew in Vietnam have died from illnesses that are presumed to have been caused by exposure.
By the time I left, Dad had several radiation treatments under his belt, had his pain under control, and was able to get out of the hospital bed without assistance and take a few steps. While this is good news, it is still quite a shock given the fact that he was lifting (light) weights only a few months ago. His big goal is to be well able to attend my son's wedding next summer.
I'm not going to provide continuous updates but, for those of you whose parents are still living, don't assume that they will live into their 90s and don't assume that you can catch up "later".