I'm not sure if I have the same thing, but I can say to avoid the pain, just stay on a high fiber diet, avoid all high saturated fatty foods, or if you still want to eat some, make sure you eat a lot of oat meal or malt o meal in the morning.. or something.
That's what I did.
My gallstones caused me hours of pain...
Once I could even feel that my gallbladder was swollen just by touch my abdomen.
Now I have no problems with it.
I can really answer your question, but I believe it is related to the increase of the enzymes.
The reason I say that is because I suffer from the same pain and it is every week, however it last about 45 to 60 seconds each time.
I have been having the pain for about a year now.
Take care and good luck