I agree with Red too, sometimes meds can do it. Also, being familar with SunDowner's I will say usually nights/days are mixed up. My aunt (may she rest in peace) had that form of dementia, and was extremely worse as sun goes down. It wasn't that all bad during the day, but still was noticed. Like Miriam said, keep a journal, actually everyone should keep a journal. When my gma and aunt passed it actually comforted me in knowing that they were more at peace and didnt have to live with the dementia anymore.
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