The causes of vertigo due to postural changes are as follows: 1. The most common cause is otoliths, which can cause vertigo when turning over to the left or right side or when sitting to lying down or lying down to sitting up. 2. Patients with vestibular migraine can also experience vertigo with postural changes, such as clinical symptoms of spinning in the sky. 3. 4. Patients with postural hypotension may experience mild relief of dizziness when lying down, but may experience increased dizziness when walking upright.