Brief Answer:
Antibiotics tend to cause stomach upset
Detailed Answer:
Hi. Thanks for coming to HealthCareMagic. I'm happy to hear that your Chronic Lyme and Bartonella are being treated appropriately. But those Antibiotics can cause alot of Stomach upsets. They tend to irritate the stomach lining and cause the stomach to secrete more acid than it usually would.
In my experience taking an acid blocking medication along with the antibiotics would be a good first step in controlling the stomach issues. There are 3 Over The counter Acid blockers available at your local pharmacist and it's dealer choice as to which one works better. They are 1) Ranitidine
2) Famotidine
3) Omeprazole, now these are GENERIC meds and the brand names change from place to place.
You can write those one and take them to your local pharmacy, the pharmacist ought to be able to give you 1 of the 3 as an OTC med. If taking one of those helps... GREAT! If not, you're going to have to go to your primary doctor and talk to them about the issue.
I hope this helps. If you would like you can describe the pain a bit more and we can discuss this in more detail. Feel free to follow-up with me any time! Thanks for coming to HealthCareMagic.com