I have to say that I love living in NZ too, though I would like to spend more time at home these days. Even a year ago I spent more time here than I am now, and it's a bit rough on me because I miss sitting in my window with a hot cup of tea, reading/writing and observing my view while DS played along side.
Plan being, of course, if I can get the teachers trained up, I'll be able to be home 4 afternoons a week, and therefore have more afternoons enjoying my beautiful view. I'll have to post a picture of it some time. When I figure out how. It's the edge of wellington's harbor, and very pretty right on the water.
I have a feeling that this particular IBS flare-up of yours likely was stress, because that' the most common trigger.
Managing stress isn't easy.