Hi there. Dizziness may be due to multitude of
causes like high or low blood pressure. heart attack, arrhythmia, cardiomyopathy, stroke, tumor, headaches, migraines, dementia, medications like blood pressure medications, sedatives, anti depressants, antibiotics, diuretics etc, metabolic disorders like hypoxia, hypoglycemia, dehydration etc. other possibilities are internal bleeding, anemia, prolonged bed rest, infections, endocrine diseases, allergies etc.