to throw my 2 cents worth in...
, i'm not intolerant to milk or wheat products! I find it really hard to believe.
Maybe you've got a sensitivity? That wouldn't be picked up in an allergy or intolerance test. Also, if it's a malabsorption (I replied to your other thread about hydrogen breath testing) that also wouldn't show up on allergy testing, as it's quite a different mechanism.

My DH doesn't cope well with milk protein... but it's not an allergy per se... when he did an elimination diet, he got symptoms in response to BOTH lactose free milk (thereby telling us it was probably not lactose) and to normal milk. He gets very mucousy, snotting, stomach cramps, pains, bloating, wind & diahrroea - he was essentially diagnosed with IBS, but he knows that dairy is his kryptonite so to speak!

Have you tried an elimination diet? Also... more food for thought... if you DO try one... one of the early foods re-introduced is pear which is very high in fructose. So that's one to watch out for. My laymans rule of thumb (not scientific at all!) is that if you bloat heaps after pear or apple - go the fructose breath test (hmmm shoulda said that in the other thread lol).

GL,
Belfie