Our brain can receive the nerve messages from eyes, skins, muscles, joints and ears to keep the balance of our body. the people who suffer from dizziness, vertigo, feeling faint or any other kind of balance problems when their brain have difficulty to receive messages from these parts. When you are very tired, you may feel dizzy and sick or unsteady when you close your eyes. There are not much over the counter medicines for the dizziness. You can continue with the meclizine. Benign Positional Vertigo is one of the common reasons for the vertigo/dizziness and it is treated by various exercises like Epley maneuver, Brandt-Daroff exercises, Semont maneuver etc.
