I have the blood rushing sound when I get out of bed and sometimes just lying there in bed etc. It's not THAT bad and frankly it hasn't caused me much distress as it sort of made sense that I would hear blood in that area when moving around (at least to me it did). And it's not the splashing, loud pulsing sound that others have had, it's just a light wind in the ears sound or a quickly dissipating rush of a waterfall when I stand up out of bed in the morning. The doctor said I did not need a CT scan as it was not a venous hum or whatever. I sort of pushed back (this guy's only suggestions are "just live with it") and told him about the cases that have been cured online after imaging was done to find the cause. He relented and ordered one and it was approved by my insurance. Now I'm having second thoughts. CT Scans present a bit of a risk of increasing risk of cancer later on right? Do I really need one? I'm thinking of calling and telling them I changed my mind and not to schedule one for me now. What to do?