Hi,

My husband has cognitive impairment, secondary to CAD causing small vessel disease, and has had 5 known strokes, with ongoing silent Lacunar strokes. Related to his cardiac disease he also has stage three kidney disease which results in anemia. You mentioned anemia which itself causes extreme fatigue, regardless of quality sleep, and if like him, you are on blood thinners it can cause silent internal G.I. bleeding. Also cognitive impairment whether it’s reached the level of Dementia yet, is exhausting as the brain has to work harder to complete sequential tasks and executive functions, so yes known to cause daytime drowsiness. Anyone will especially experience daytime, drowsiness, if they are recovering from a stroke. And as several have mentioned, drowsiness is caused by many of the medication’s given to manage hyperlipidemia, hypertension, anxiety, etc.