Yes indeed, not much fun at all!
These bowel things, of all kinds, are so individual it's difficult to even know where to start eliminating food. And as you say, cooking for someone else too can make it even more irksome. Most of the time now I just try and do something which we both like but which I can eat with little or no problems.
It can take the pleasure out of cooking though, for anyone who usually enjoys it, like yourself :(
It'll just take a bit of adjusting to Eccles, you're very imaginative and knowledgeable, I'm sure you'll get your head round it and come up with some great ideas :)