I tried the walking, jumping recommended above and I found that a similar result could be obtained by bouncing up and down on the balls of my feet, landing quite heavily on my heels.
I could feel the obstruction move across to the right and down, after only two sessions of about 10 - 15 seconds, the pain had almost completely subsided, I also took two asprin at this time and within minutes was completely free of pain.
It worked for me after a night of agony. Try it yopu have nothing to lose.