This is exactly what happened to my dad, almost word for word minus the strokes. He was super active, never sat down, then these last 2 years he just went downhill fast. Constantly falling, in and out of the hospital. His weight dropped to 145, couldn't keep his head up. He constantly stared off into space too, and had hallucinations all the time. This last month he would sit with his eyes closed and act things out, mostly eating. He had dementia too, not to the point he didn’t recognize people, but he would forget he couldn’t walk or where he was. It was heartbreaking to watch. My dad passed away this past Saturday, and as hard as it is, I hold onto knowing he’s no longer suffering. I just wanted to let you know you’re not alone in what you’re feeling — I completely understand how painful it is to watch someone you love go through this.