Dizziness...
on 9/14/08 12:28 pm - VA
It sounds like you maybe having orthostatic hypotension, which is when you blood pressure drops when you stand too quickly after sitting, lying, or squatting. Make sure you're getting your fluids in. (Dehydration can cause this, too.) If you're on any blood pressure medication, call your doctor/PCP and have that checked.
When you're sitting, your legs are bent at the knee and that can cause pooling of blood in your legs. Then when you stand, it takes some a bit of time for your blood vessels in your legs to constrict to keep your blood pressure up. If you body doesn't compensate fast enough, it causes a dip in your blood pressure and circulation to your head and upper body .... causing dizziness.
If you get up gradually, rather than suddenly, it should help. If it continues or worsens, see your PCP.
Additionally, ear infections, viruses, and other issues can cause dizziness. If it worsens or continues, go see your PCP.