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  2. Orthostatic intolerance - Wikipedia

    en.wikipedia.org/wiki/Orthostatic_intolerance

    Orthostatic intolerance occurs in humans because standing upright is a fundamental stressor, so requires rapid and effective circulatory and neurologic compensations to maintain blood pressure, cerebral blood flow, and consciousness. When a human stands, about 750 ml of thoracic blood are abruptly translocated downward.

  3. Carnett's sign - Wikipedia

    en.wikipedia.org/wiki/Carnett's_sign

    In medicine, Carnett's sign is a finding on clinical examination in which abdominal pain remains unchanged or increases when the muscles of the abdominal wall are tensed. [1] [2] For this part of the abdominal examination, the patient can be asked to lift the head and shoulders from the examination table to tense the abdominal muscles.

  4. When to worry about stomach pain - AOL

    www.aol.com/news/2015-04-08-when-to-worry-about...

    Stomach pain is constant. Continuous pain is generally more concerning than intermittent, colicky type pain. If the pain is severe, waking you from sleep or making it impossible for you to ...

  5. Anterior cutaneous nerve entrapment syndrome - Wikipedia

    en.wikipedia.org/wiki/Anterior_cutaneous_nerve...

    Anterior cutaneous nerve entrapment syndrome (ACNES) is a nerve entrapment condition that causes chronic pain of the abdominal wall. [1] It occurs when nerve endings of the lower thoracic intercostal nerves (7–12) are 'entrapped' in abdominal muscles, causing a severe localized nerve (neuropathic) pain that is usually experienced at the front of the abdomen.

  6. 14 Things That Might Be Causing Pain in Your Lower Left Abdomen

    www.aol.com/14-things-might-causing-pain...

    What causes lower left abdominal pain? Lower left abdominal pain can have many causes, ranging from minor to serious, says Andrew Boxer, M.D., gastroenterologist of Gastroenterology Associates of ...

  7. Suffering from abdominal pain? 10 possible causes why your ...

    www.aol.com/10-tummy-troubles-never-ignore...

    Here are some common causes of stomach pain and discomfort — and how to fix them. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to ...

  8. Abdominal pain - Wikipedia

    en.wikipedia.org/wiki/Abdominal_pain

    Abdominal pain, also known as a stomach ache, is a symptom associated with both non-serious and serious medical issues. Since the abdomen contains most of the body's vital organs, it can be an indicator of a wide variety of diseases.

  9. Bowel obstruction - Wikipedia

    en.wikipedia.org/wiki/Bowel_obstruction

    Depending on the level of obstruction, bowel obstruction can present with abdominal pain, abdominal distension, and constipation.Bowel obstruction may be complicated by dehydration and electrolyte abnormalities due to vomiting; respiratory compromise from pressure on the diaphragm by a distended abdomen, or aspiration of vomitus; bowel ischemia or perforation from prolonged distension or ...