question: I had spinal surgery in1977 (L4/L5). Lately, I have back discomfort on the upper right hand side, going up into my neck and experience tightness across my eyes and lightness in my head. I sometimes feel slight sickness. I am 70 and work on a sewing machine up to 4 hours each day as a fabric artist. I am having remedial massage, which helps. I plan to have my eyes re-tested next week.Thanks