It depends, but most of the time you have gotten up to fast and all the blood in your head goes to your body for a second or so before your heart pumps the blood back into your head.
For a lot of woman.
Light-headedness or fainting caused by insufficient blood supply to the brain.
Usually, you have the feeling of dizziness and or light-headedness and the desire to throw-up.
heavy breathing and light headedness
Euphoria,light-headedness,poor concentration and abnormal behavior
Varies quite a bit, BUT 1. anytime you experience orthostatic hypotention (light headedness on standing) OR 2. a BP reading of below about 90/50 you should suspect low bp.
if you dont intake enough air whilst singing you might begin to feel light headed
Standing in the Light was created in 1983-10.
The following are symptoms: Light headedness, fatigue and weakness. Dry mouth and a lack of sweating can also occur.
lack of response to voice or touch; disorientation or stupor; light-headedness; headache; sleepiness; Not breathing
Your vision should not light up when you stand. This may be a result of light headedness or dizziness and may indicate low blood pressure or low blood sugars.
If it is a major nose bleed, loss of blood can cause light headedness, nausea, passing out etc