Hope Brody is feeling better now!
Our Ray was on two courses of Doxy for Lyme. When we went in for the C6 Antibody test to make sure he was "clear" after his 6 week round of Doxy (the first time), he wasn't. So....he went on them again.
The Doxy upset his stomach terribly, so we gave him a Pepcid prior to the meds, plus started giving him 4 meals a day. It helped a LOT. (Of course he always got the meds with a full meal, too).