These concerns, in turn, resonate with me. I think my father is still sharp and have several competing quotidian explanations (projections?) of what's going on

These concerns, in turn, resonate with me. I think my father is still sharp and have several competing quotidian explanations (projections?) of what's going on. But, it's impossible to silence the nagging worry that there's a chemical/mental imbalance brewing, or that this will be one of those things I'll look back on some day as an early sign of something.