My grandma has some neurological issues.

My 80-year-old grandmother has had progressive memory loss and behavioural changes, which became noticeable after the deaths of her husband, daughter-in-law, and granddaughter within a three-month period in 2024. She repeatedly asks the same questions, forgets recent events, sometimes becomes confused about her surroundings (for example, asking if her own renovated house is really her home), has become socially withdrawn, spends most of the day in her room, has lost interest in activities she previously enjoyed, including daily prayers, has a poor appetite, persistent dizziness, fatigue, and occasional palpitations. Her CT brain shows cortico-central atrophy, an old lacunar infarct, and a small calcified meningioma without mass effect. We would like an assessment to determine whether this is dementia, depression related to bereavement, or another treatable condition.