i have pressure in my head when I am sitting down and/or if my waistband is too tight. My ears ring or hiss, I get eye migraines when I stand too (fast or slow). I have had brain cts with nothing unusual. I kind of feel like there is either a hernia (or just too much fat) in my upper abdomen that is cutting off circulation to my head. I also feel like my eyes are feeling pressure too (and as a result had a detached retina and the pressure in my eyes is high). What could be going on here? My blood pressure is always normal too. Docs don't seem to take it too seriously but I end up in bed with migraines too often.