Hi Claire,

My husband's lactose intolerances grew much worse when we moved to Switzerland. We have discovered (through much trial, pain and error) that the nicotine, around food and in centers makes this worse. Also, it improved a lot when we bought a water-filter. So, try this is it gets worse.
But I think the water is so good here, you know filled with so many great minerals that his body didn't take to it too well. The filter had made his health so much better. Odd to work in the reverse! But some immune systems don't like all those extra minerals to work with.
Just thought I'd pass these things on. They may save you a lot of hassle