A toxic liver can produce bloating, gas and either constipation or diarrhea. This is because the liver not only has to produce 1 to 1 and 1/2 quarts of bile DAILY for proper digestion, it also has to filter out every toxin that comes into our bodies.
If the toxins are created internally from parasites, then the liver gets very congested from toxins and cannot produce enough bile. This sounds like what is happening with you.
I would recommend the plain liver flush s directed at the bottom of the questions and answer page at http://www.humaworm.com
Follow this with a round of Humaworm. After the Humaworm, I would recommend the Liver Formula.