That’s a really good observation, and there could be several things underneath it. With cognitive changes, bathing can become surprisingly complicated: initiating the task, remembering all the steps, managing an unfamiliar bathroom, temperature or sensory discomfort, or simply not recognizing that a shower is needed. And sometimes the person genuinely believes they did bathe. The fact that she still takes beautiful care of her face is interesting, too. It suggests this may not be simply “she doesn’t care about her appearance anymore.” Some familiar routines may still be working beautifully while others are becoming harder. And the two ratty shirts caught my attention for the same reason. Packing requires a surprising amount of planning, judgment, sequencing and decision-making. I wouldn't try to figure out exactly what it means from one Cape Cod trip, especially from across the country. But I would put these observations on your list for her doctor: not bathing for the week, pretending or believing she'd taken the bath, the unusual clothing choices, repeated questions, and the other recent changes you've noticed. For now, you don't have to fix any of it. You're noticing. That's useful information.