KC,
I can appreciate, to some extent, where you're at. For a long time it was just my wife and I, our dogs and our home. That was before my father-in-law's health started to decline. We delt with that situation for the better part of three years before he passed. One year to the day that he died my mother-in-law was diagnosed with cancer. She went through radiation treatment, got better then worse, then better again. We are dealing with that roller coaster now.
My wife has two brothers; one lives two blocks from my mother-in-law but will not lift a finger to help. We live 40 miles from her and have to drive to her place at least three times a week, sometimes more, to buy her groceries, take care of her bills, do home repairs, etc. The other brother is in bad health and isn't much help.
This all at a time in our lives when we should be enjoying our retirement and relaxing. Just doesn't seem fair, does it.
You're not alone. Just look around. Life is like a soap opera but even more exciting.
Hang in there. All things pass.
Tom