Gloom, despair, and agony on me!!! I know this pain all too well. Moved the bars up, cut off one pin so I could rotate the bars, changed seat height, leaned forward, leaned back, stretch, alternate between Yoda and complete slouch, hands on the bars, hand off the bars, stand up, move the feet from sliders to the pegs, to the passenger pegs, hang my toes over the pegs, eat tylenol by the bottle, hydrocodone at night, and nothing seemed to help.
Finally went to see the chiropractor who worked on me for over six months to get my spine straightened out. I was way out of alignment. 6 car wrecks and 20 years of carrying a weapon on my hip had me all kinked up. Monthly tuneups now, switched to an ergonomic keyboard, and a rollerball mouse. The chiro and the hardware helped more than anything else. I still get the burning knot, but now it will stretch out. Learning the correct stretch will do you a world of good, but someone has to tell you what is exactly wrong and how to fix it yourself.
Good Luck finding your fix. If all else fails, a double Jack Daniels and a friendly pair of hands rubbing whatever ails you!