Is making everything about themselves a sign of dementia? I don’t mean the usual conversations. A recent example is my niece had a baby and my mom said she added all the numbers up of the baby’s birthday and it came out to “her” favorite number. She does quirky things like this all day long. I am getting used to it but my brother won’t even speak to her anymore because she only relates news about other people to herself. It just occurred to me this might be a sign of something.