Hi I feel the blood flow in my head and hear a constant sound. It increases when I lay down in bed at night or I get stressed. I went to the doctor and he diagnosed me with Tinnitus and did an audiometry test, a Bera test and then the neurological Doctor did an MRI. But all reports are normal. I don't feel nausea, fainting, dizziness, or loss of consciousness. I have been feeling this for 9 months. I meditate and do yoga and exercise daily.