One entity to consider in your differential diagnosis is that of contraction knots, aka “trigger points” in muscle fibers. They are a common cause of referred p

One entity to consider in your differential diagnosis is that of contraction knots, aka “trigger points” in muscle fibers. They are a common cause of referred pain and can also cause all sorts of symptoms if the contraction knots also impinge upon blood vessels, nerves and/or automatic fibers. Because Western medicine basically ignores mechanical issues that aren’t amendable to surgery, it can be tough to find a doctor who can diagnose trigger points properly unless they’ve been trained to do so. I went through a somewhat similar problem a decade ago where I had excruciating pain and burning to one side of my sacrum for years. I could not sit in a chair for more than 20 minutes, and could only sleep on my stomach. I went to doctor after doctor who put me through test after test, only to end up with no diagnosis or relief. One day I happened to be scrolling through the AM dial when I came upon a show where someone was talking about piriformis syndrome, a type of trigger point that resulted in symptoms identical to mine. I found a doctor who treated it with myotherapy and the rest is history. I recommend The Trigger Point Therapy Workbook by Clair Davies NCTMB and Pain Erasure by Bonnie Prudden. Also Quick Study makes a nice Trigger Points chart. Truth be told, I’m surprised this issue isn’t discussed more given the occupational hazard created by sitting in front of a computer all day. I hope you feel better soon. Please keep us posted on your progress and take care.