Changes for the worse

We interrupt a dementia story for other health concerns... It's been a long three weeks. Mom was hospitialized when her we all realized that her fatigue, "feeling lousy" and out of control blood sugar wasn't just the cold/flu/crud going around. To make a very long story short, she had a massive buildup of fluid around her heart. She had to have surgery to have it drained and she's now recovering. But with as a dementia patient, I'm not sure that she will truly recover. As I saw with her two ankle surgeries, she's slipped a notch or two cognitively. But this time, she knows that she's very confused and she's very frustrated about it. I think I'm grieving that I've lost a little bit more of her. That on top of managing all of the post-hospitalization follow up appointments and catching back up at work have left me feeling pretty strung out. But we're not done yet. While in the hospital, some elevated tumor markers were found in her blood. I'm still not very clear on what else was found, as I had a hell of a time getting the doctors to communicate with me. We're following up with an oncologist in a a couple of days, and I'm really worrying about what kind of decisions may be on the horizon.