I got pancreatitis, a gallstone came out of gallbladder and lodge in my pancreas and caused the pancreatitis, had levels as high as an acoholic, should have been in lots of pain, I had no pain and I don't drink anything alcohol. They put me out blew it out with air, on a strict diet for 2 weeks until surgery, in the mean time another got out and they pushed it through, I had to spend the night in the hospital on antibiotics. I couldn't bend over for 6 weeks. Been fine ever since.
I hope your back gets better and hope they remove your DS gallbladder, only sure cure for it.