Hey dragonfly,
Do you think it could possibly be the high fat content in the cheese, rather than it being the lactose or dairy itself that's bothering you? I offer that suggestion because after having my resection, I also had problems with gas, diarrhea etc. At first I was terrified that I might have become lactose intolerant post-surgery!!---and I NEVER had problems with anything dairy prior to my surgery. After doing some experimentation (LOTS of it), I finally realized that if I eat too much of something that has a fairly high fat content, then I get the gas, burning diarrhea etc. I don't give up those foods, I just eat a smaller quantity of them which seems to do the trick for me.