DEAR DOCTOR K: I often feel lightheaded when I stand up, especially first thing in the morning. Why does this happen?DEAR READER: You are probably experiencing a drop in blood pressure when you stand up. This is called orthostatic hypotension. As a result, not enough blood reaches your ...
Dear Dr. Roberts,I've been an avid endurance athlete for over five years. For a while now, if I stand up fast after sitting I feel lightheaded. Nothing that has caused me to faint or blackout but I have to pause. I have no shortness of breath or rapid he
dropped to 60. 50 When I sleep. That is where it has remained to this day. I believe that nuclear biohazard almost killed me. I was released on the 5th day sicker than when I went in. No diagnosis. I went home and followed up with an internest. He tested my blood and stool agai...