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Feeling lightheaded can also be a sign of low blood sugar, Dr. Shaikh says. This happens because the brain isn’t getting enough glucose, which the brain needs for energy.
If you stand up too quickly and start to feel light headed, it's caused by a drop in blood pressure in your head and upper body. It's the same reason fighter pilots black out in high G turns, and ...
Lightheadedness is a common and typically unpleasant sensation of dizziness [1] or a feeling that one may faint. The sensation of lightheadedness can be short-lived, prolonged, or, rarely, recurring. In addition to dizziness, the individual may feel as though their head is weightless.
You can feel dizzy if you are feeling lightheaded or if things seem foggy. “Dizziness may be described by patients as feeling faint, like they’re going to pass out.
Many report lightheadedness (a feeling that one might be about to faint), sometimes severe, or even actual fainting with associated fall risk. [ 9 ] [ 10 ] [ 11 ] With chronic orthostatic hypotension, the condition and its effects may worsen even as fainting and many other symptoms become less frequent.
Vertigo is the sensation of spinning or having one's surroundings spin about them. Many people find vertigo very disturbing and often report associated nausea and vomiting. [6] Presyncope describes lightheadedness or feeling faint; the name relates to syncope, which is actually fainting.
Of course, if you're feeling sick, it’s a good idea to test yourself so you can know the full picture of what you’re dealing with, says Thomas Russo, MD, a professor and chief of infectious ...
The spins (as in having "the spins") [1] is an adverse reaction of intoxication that causes a state of vertigo and nausea, [2] causing one to feel as if "spinning out of control", [3] especially when lying down. It is most commonly associated with drunkenness [4] or mixing alcohol with other psychoactive drugs [5] such as cannabis.
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