We've all experienced dizziness or lightheadedness after standing up too quickly. While periodic vertigo is common, if the sensation occurs frequently or becomes increasingly more severe, it may a sign of Postural Orthostatic Tachycardia Syndrome. Often referred to as POTS, Postural Orthostatic … [Read more...] about Postural Orthostatic Tachycardia Syndrome (POTS): Managing Your Symptoms