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  2. Lightheadedness - Wikipedia

    en.wikipedia.org/wiki/Lightheadedness

    Lightheadedness often accompanies the flu, hypoglycaemia, common cold, or allergies. Dizziness could be provoked by the use of antihistamine drugs, like levocetirizine, or by some antibiotics or SSRIs. Nicotine or tobacco products can cause lightheadedness for inexperienced users. Narcotic drugs, such as codeine, can also cause lightheadedness.

  3. 6 signs you're about to pass out and why it happens - AOL

    www.aol.com/news/6-signs-youre-pass-why...

    This can cause lightheadedness in some people. In postural orthostatic tachycardia syndrome (POTS), the lightheadedness also comes with a rapid increase in heartbeat. Taking medications or ...

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

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

    Pregnancy, certain medications and long-term bed rest can also cause a sudden drop in blood pressure. Related: It's More Than Just Dizziness! Here Are the Telltale Symptoms of Vertigo—and the ...

  5. Internal bleeding - Wikipedia

    en.wikipedia.org/wiki/Internal_bleeding

    Internal bleeding (also called internal haemorrhage) is a loss of blood from a blood vessel that collects inside the body, and is not usually visible from the outside. [1] It can be a serious medical emergency but the extent of severity depends on bleeding rate and location of the bleeding (e.g. head, torso, extremities).

  6. Hypovolemic shock - Wikipedia

    en.wikipedia.org/wiki/Hypovolemic_shock

    When resulting from blood loss, trauma is the most common root cause, but severe blood loss can also happen in various body systems without clear traumatic injury. [3] The body in hypovolemic shock prioritizes getting oxygen to the brain and heart, which reduces blood flow to nonvital organs and extremities, causing them to grow cold, look ...

  7. Dizziness vs. vertigo: What the difference is and why ... - AOL

    www.aol.com/dizziness-vs-vertigo-difference-why...

    Vertigo can be accompanied by hearing loss because it often affects the nerves that help with hearing. It can also be a sign of an inner ear infection or problems with blood supply to the inner ear.

  8. Bleeding - Wikipedia

    en.wikipedia.org/wiki/Bleeding

    Bleeding, hemorrhage, haemorrhage or blood loss is blood escaping from the circulatory system from damaged blood vessels. [1] Bleeding can occur internally , or externally either through a natural opening such as the mouth , nose , ear , urethra , vagina or anus , or through a puncture in the skin .

  9. Reflex syncope - Wikipedia

    en.wikipedia.org/wiki/Reflex_syncope

    Making the correct diagnosis for loss of consciousness is difficult. The core of the diagnosis of vasovagal syncope rests upon a clear description of a typical pattern of triggers, symptoms, and time course. [citation needed] It is pertinent to differentiate lightheadedness, seizures, vertigo, and low blood sugar as other causes. [citation needed]