Hi Dr Rynne, my question is the following. I recently had an episode where I felt light headed, dizzy, somewhat faint. It only lasted a few moments and its been happening on and off for the last few days. Im a 43 year male, over weight, taking blood pressure and cholesterol meds. I went to my Dr. and everything seems fine. He lowered my blood pressure meds thinking they might be too high. But Im still concerned of what it could be. Im about 3 or 4 weeks away from weight loss surgery and wanting to make sure Im ok prior to surgery. Any ideas???