Quote:
Originally Posted by growlycat
My dad is a big denier of reality anyways. Irritability out of nowhere is the only symptom that is glaring to me. No forgetfulness or fearfulness. So he could just be an elderly jerk
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I don't think there's a recognized course for dementia - i.e., some sufferers may first exhibit forgetfulness, some may first display uncharacteristic mood swings.
If it would help you if he were diagnosed, maybe mention your concerns to his new wife? (Not as dementia, just as "Dad doesn't seem like himself.")