1. Benign Paroxysmal Positional Vertigo (BPPV) is caused by calcium carbonate crystals (otoliths) in the inner ear that become dislodged and stimulate the balance organ, leading to vertigo; 2. Meniere's Disease is characterized by increased pressure in the inner ear due to excess fluid, causing vertigo, hearing loss, and tinnitus; 3. Both conditions require careful management, including lifestyle adjustments, and should be diagnosed and treated with the guidance of a specialist.