Posted by C Dupuy on December 11, 2000 at 17:36:16:

In Reply to: sulpher burps posted by LKH on December 11, 2000 at 11:42:39:

: I am suffering from yet another bout of rotten egg burping, I have gone through this enough to know that in a few hours I will have stomach cramps that only come in second to child birth, and will be in misery sitting on the pot all night with coffee ground like runs. I started these about 5 years ago and finally could not stand it and went through humiliating tests that got me nowhere,just the Dr's looking at me like I was freak. They said maybe I was lactose intolerant, but this did not happen all the time and I could not find a pattern to what I ate making me sick. They did find that I had a Thyroid problem. I did not have any problems for 3 years, then not anything again till the last few months I have had two. I dread what I know is coming in a few hours, sometimes taking the Pepto and Mylanta lessen the problem but in no way take it away. I have read up on the Giardia and Chron's but it is not quite it, I do not have vomiting or blood. HELP!!

You should be tested for giardia. If your doctor claims that you could not have this for 5 years he is wrong. Make sure you collect at least 3 stool samples for testing.
The sulfur or rotten egg burps are a typical symptom.