Hi! welcome to HCM! Dizziness is a common complaint in people having low blood pressure. When the blood pressure is too low, not enough oxygen-rich blood is being delivered to the brain, and its function can be affected. Low blood pressure may be the result of an underlying illness or disease, or it may be a normal physiologic condition may be due to sleep deprivation.Good sleep of at least 6 hrs is required for a person to feel fresh and healthy. Some common reasons for low blood pressure include the following:Anemia ,dehydration, Fever also can cause a significant amount of water loss due to increased metabolic rate and excessive sweating as the body tries to cool itself.Anxiety can also cause dizziness and blurred vision.so be relaxed! hope this helps you!take care