Sorry...I can't be great help for you...but I have a question for you. Over the years doctors have always thrown scare of pancreatitis on the 'table' if I don't get my diabetes under control.
But I've noticed from reading info from many medications...their side effects is increased risk of pancreatitis...and yet doctors are happy to pile up pill after pill..increasing the risk by many folds..
So...when I read your post, my first thought was, are you on any medication that might increase your risk for pancreatitis?
If I would be in your situation...and I would be given same instructions regarding diet..well, I would be asking lots of questions too. For start with, doctors or NHS in whole don't have good track record (in my eyes that is!) regarding to dietary advise..
I just had quick look around...and come up with these pages..
http://articles.mercola.com/sites/a...7/inflammation-triggers-disease-symptoms.aspx
http://articles.mercola.com/sites/articles/archive/2011/08/21/enzymes-special-report.aspx
..some food for thoughts....