There is always a strong pulsating throbbing sensation in my head, especially while lying down. It's so strong, it kinda feels like I move a bit with every pulse. My head feels as If it is not getting enough blood flow, there is alot of pressure all over and there is a loud swooshing sound in the back of my head. I've had a carotid doppler, MRI with contrast of my brain and temporal bones with inner ear, all normal. My echocardiogram was also normal. Bloodwork normal.