Re: Water Fasting - Extreme Stomach Pains
There is filtered water, and then there is filtered distilled water
"Filtration: Filtered water has passed through a fine strainer and/or activated carbon. While they reduce disagreeable tastes and odors, filters are not effective in removing many common contaminants such as arsenic, bacteria, copper, lead, nitrates, parasites, sodium and viruses. A filter can become a breeding ground for bacteria as the organic material which remains in the filter begins to decay. Another drawback is not knowing when to replace the filter. Some manufacturers suggest replacing filters when bad taste or odor returns. In reality, a filter may be able to control taste and odor long after it has lost its ability to reduce tasteless, odorless organics such as THMs (trihalomethanes) which are byproducts of chlorination."
http://www.waterwise.com/productcart/pc/lc_purity.asp
I wasn't trying to say that there was any guarantee that this was the answer to your problem, only that it would be an easy process of elimination to the problem.
Water was all that was in your gut so it's the logical starting place.
Then you could look elsewhere.
Good luck, Hope you get on top of it.
IC