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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.
Richard Gregory suggested that, with lack of peripheral information, eye movements which correct movements due to muscle fatigue are wrongly interpreted as movement of the perceived light. [3] The amplitude of the movements is also undefined. Individual observers set their own frames of reference to judge amplitude (and possibly direction).
In teichopsia, migraine sufferers see patterns in the shape of the walls of a star fort. As the scotoma area expands, some people perceive only a bright flickering area that obstructs normal vision, while others describe seeing various patterns. Some describe seeing one or more shimmering arcs of white or colored flashing lights.
If you find yourself feeling lightheaded and off-balance on a regular basis, it’s important to get to the root cause of why. It can also be helpful to know what to do when lightheadedness hits.
Many conditions cause dizziness because multiple parts of the body are required for maintaining balance including the inner ear, eyes, muscles, skeleton, and the nervous system. [7] Thus dizziness can be caused by a variety of problems and may reflect a focal process (such as one affecting balance or coordination ) or a diffuse one (such as a ...
Light-headed; Dizzy Dizzy – about to black out; Dizzy – with the room spinning around me; My mouth is dry; Nauseated; Sick like I have the flu; like I have to vomit; Short of breath; Sleepy; Sweaty; Thirsty; Tired; Weak; I can't: Breathe normally; Hear normally: losing hearing; sounds are too loud; ringing or hissing in my ears; Move one ...
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 ...
A constant sense of unsteadiness, rocking or swaying, dizziness or lightheadedness; Disequilibrium on most days for at least 3 months; Spatial orientation problems; Off-kilter sensation; Extreme sensitivity to movement and/or complex visual stimuli such as grocery stores or driving in certain weather conditions