What Causes Lightheadedness When I Stand Up?
Probably postural ( orthostatic ) hypotension.
Detailed Answer:
Hi, I had gone through your question and understand your concerns. The cause of your concerns may be postural hypotension ( lowering of blood pressure after you stand up from sitting or laying or longstanding). If you feel just lightheadedness and weird sensation in your brain, then the case is of minor concern. Economising your energy (physical activity), good rehidration, avoiding heat exposure, may help.You need measurement of blood pressure in sitting and standing position. If you ever experience other symptoms ( fainting, loss of consciousness, confusion, nausea) then you have to consult your primary care Doctor to exclude any serious condition. Hope this answers your question. If you have additional questions or follow up questions then please do not hesitate in writing to us. I will be happy to answer your questions.
Find some time for yourself.
Detailed Answer:
Hi and thanks for asking again. I think you need some time to relax and see how is going with your concern. Postural hypotension usually is diagnosed when there is a difference of 20 mmHg between blood pressure measured in laying and standing position. Seems to me that your symptoms are caused from a busy and fatigued day activity. If you have the possibility of observing your condition in a relaxing environment and there are no symptoms, then is fatigue, if your symptoms persist there is need for further investigation about cause of your symptoms. Hope this answers your question. If you have additional questions or follow up questions then please do not hesitate in writing to us. I will be happy to answer your questions.