Just to add to the stress, my husband's ex-wife, and mother of my step-son, is going through similar problems with her parents, but it has required her to quit her job to care for them full-time. She has no money coming in and is going through her savings really quickly. My step-son is having to deal with the prospect of all three remaining grandparents declining rapidly at the same time. I'm worried about them (grandparents, ex-wife, and step-son) too.
I feel everyone's concerns and pain and give them whatever emotional support I can, but I'm beginning to feel like I could crack under this pressure.