I am thinking of getting tested to see just what I could be intolerant/allergic to as I've had migraines for almost 40 years and now have been going gluten free for several weeks but not a great deal of improvement. I know I am intolerant to food additives, colour in tablets and many things like cheese, chocolate etc. but I need to know for sure if I need to be wheat free and diary free also what other foods could be causing my problems. I also have IBS/Diahorrea problems as well. I am thinking of going to York Laboritories, I know it's expensive, I'm just wondering if any of you have been tested and if you've used York Laboritories or can recommend other companies who carry out these kind of tests. I don't want to waste my money. Any comments would be very much appreciated. Hoping somebody can help.