I am concerned about my 65 year old mom. She seems ok when I see her in the morning, weekdays. In the evenings/on weekends, her speech becomes slurred and she whistles when she speaks, her thinking is fuzzy and her response time in conversations increases. It's like her mind has sort of wandered away from the conversation, or at least social conventions. She just ignores other people and then returns. She falls asleep while sitting down. Her face gets a bit puffy in the evenings, pretty consistently. She has a history of high blood pressure, but that seems to be under control with light medication (she takes meds once every three days). Also, in the evening she will kind of rant and have conversations with herself with you sitting in front of her...she can act downright rude and like a young, petulant or silly child. I'm worried because she's almost a different person in the evening than in the morning and it seems like more than normal fatigue. I've kept an eye on her, and haven't seen her drinking or eating anything (e.g. alcohol) that could, in my experience, cause such a big behavior shift. I'm worried it could be sleep apnea, blood pressure related (but I don't know how, or how to speak to a physician about it) early dementia or something neurological (I don't think so because of the morning/night behavior differences pattern). Please let me know your insights, thoughts or ideas. Thanks!