My mom who i feel may be in early stages of dementia and I'm doing my best to search for her doctors. Also I'm wondering, do doctors detect this illness? She gos to her doctor visits regularly and it seems they say she is find (hopefully she not lying). Lately she has lied to me. She just seems off to me, but when she speaks with others she seems fine. I know her better than anyone and I know something is off. She's 67, so I'm thinking it might be age. Can doctors tell when a elderly has symptoms of dementia?