My mom came to live with me and my husband about two months ago. Since then, I've noticed that she's really sensitive to noises around the house, like pots and pans clanging, or dishwasher door closing. She's also very easily frightened by loud noises when we are in the car, or big bumps as we go over potholes, etc. Is this typical of early dementia, and what can I do about it? I'd like to be able to calm her and assure her that she's safe and doesn't have to constantly worry about these types of things.