question: Every day at some point I am light-headed usually when I stand up. I feel as if I am about to pass out. I just stand there for about 5-10 seconds and the feeling passes. I am on medication (Crestor, Amlodipine, and Lisinopril. I am trying to get in touch with my Physician. He has not called back yet. Any ideas? I am drinking a lot more fluids than usual - water, fruit juices, tea.