I have both Lyme and Bartonella (Babesia, too), and the article by Virginia Sherr, a Lyme aware GI doc, explained my abdominal
symptoms very well. She calls it "Bell's Palsy of the gut." When Lyme causes partial paralysis of the digestive system, all kinds of problems appear. The stomach can't control the amount of acid it produces, so you can alternate between too much (burning) and too little (poor digestion, cramping).