Hi Most of us experience the condition that you have mentioned. Normally, it happens, as we stand up from sitting or standing position, due to gravity, the will be a temporary deficient blood flow to the brain. Hence the mild dizziness. Sometimes, due to the balancing mechanism in the middle ear too is responsible for the condition. But if the dizziness is more, then it may be due to low BP or some other problem. Consult a physician. You can consult me, if you feel