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2. Orthostatic headache - Wikipedia

   en.wikipedia.org/wiki/Orthostatic_headache

   Orthostatic headache is a medical condition in which a person develops a headache while vertical and the headache is relieved when horizontal. [1] [2] Previously it was often misdiagnosed as different primary headache disorders such as migraine or tension headaches. Increasing awareness of the symptom and its causes has prevented delayed or ...

3. Orthostatic hypotension - Wikipedia

   en.wikipedia.org/wiki/Orthostatic_hypotension

   Orthostatic hypotension can be confirmed by measuring a person's blood pressure after lying flat for 5 minutes, then 1 minute after standing, and 3 minutes after standing. [29] Orthostatic hypotension is defined as a fall in systolic blood pressure of at least 20 mmHg or the diastolic blood pressure of at least 10 mmHg between the supine ...

4. The 6 most common headache types — and when to see a doctor

   www.aol.com/6-most-common-headache-types...

   There are more than 150 different types of headaches, ranging from a mild annoyance to a debilitating experience. ... up to 18% in the U.S. — and are the leading cause of disability among ...

5. Orthostatic intolerance - Wikipedia

   en.wikipedia.org/wiki/Orthostatic_intolerance

   Orthostatic intolerance (OI) is the development of symptoms when standing upright that are relieved when reclining. [1] There are many types of orthostatic intolerance. OI can be a subcategory of dysautonomia, a disorder of the autonomic nervous system [2] occurring when an individual stands up. [3]

6. Is It Normal to Feel Lightheaded Every Day? - AOL

   www.aol.com/normal-feel-lightheaded-every-day...

   This can happen when standing up from a seated position or after lying down. Pregnancy, certain medications and long-term bed rest can also cause a sudden drop in blood pressure. Related: It's ...

7. Postural orthostatic tachycardia syndrome - Wikipedia

   en.wikipedia.org/wiki/Postural_orthostatic...

   Postural orthostatic tachycardia syndrome (POTS) is a condition characterized by an abnormally large increase in heart rate upon sitting up or standing. [1] POTS is a disorder of the autonomic nervous system that can lead to a variety of symptoms, [10] including lightheadedness, brain fog, blurred vision, weakness, fatigue, headaches, heart palpitations, exercise intolerance, nausea ...