When I stand uo I sometimes get this heavy pressure feeling fron the middle of my back up through my head. I can "hear" my heart beat..it kind of swooshes in my head..(I am having a difficult time describing this) The surounding sounds fade in and out with each beat. I feel faint, but have never passed out. This only happens as I go from either laying to sitting, or sitting to standing, and sometimes as I try to lay down on my stomach. Sometimes my vision goes to black, but not always. It resolves itself after about 1 minute.
Several years ago, I had a lower back injury where I had to have an MRI done. Since it was a workplace accident, my Dr was not inclined to tell me about another problem they found. The work comp Dr told me I had a lesion on my spinal cord in the lower "C" section of vertebra. Can someone tell me what's going on, or have they has similar ecperiences?