Luckygirl. I too am one of the 1% that has SOD diagnosed after keyhole gallbladder surgery about 10 years ago following an epidural scan of the area around my pancreas. Mine is slightly different, as for no reason whatsoever it goes into spasm by itself. Fortunately it is now more or less controlled by drugs, but like you, no morphine, no codeine, and I can’t take Tramadol, so pain relief is a bit of a problem.
Bluebellewould Please do not get concerned about what I have been saying, as previously stated it is very rare. The gallbladder operation was fine, I was in for 24 hours as far as I recall and recovered quickly. I have had a number of operations and always felt nervous beforehand, and without exception afterwards wondered why, because everything was fine. Good luck, and enjoy your Christmas free from pain.