One thing that ropes in with Lyme is multiple types and dimensions of GI ( gastro-intestinal) problems. There can be many sorts of pain in different areas throughout your entire GI track. I have experienced different symptoms of pain and problems for a very long time now, since I was 8 or 9, and all of it was worsened, we believe, by my Lyme infection. Since a very young age I had trouble with the fluid motion of my whole system, and keeping everything running smoothly. One thing we discovered after seeing the GI specialist was that I had acid reflux. Acid reflux is when the bodies esophagus muscles aren't strong enough to hold the stomach's acid where it belongs. This causes pain, 'heartburn', nausea, and irritation of the esophagus. I had mostly an issue with 'heartburn' and nausea, some vomiting at late night hours when I was lying in bed, and the acid was worse. I have taken multiple medicines to reduce the amount of stomach acid over the years, and have had to prop myself up at night. Since I got Lyme the GI track has been far more irritated, and I've had to have a special bed that mechanicaly inclines like a hospital bed, to encourage the acid to stay down (thank you gravity). I am most recently on Axid, which works more with encouraging the bodies natural ability to hold down acid and food with a small sphincter-like muscle at the top of the stomach, between stomach and esophagus. It does also reduce acid, called an acid inhibitor, or antacid. This is a prescription medicine.
I originally in April or May of 2008 wnet in for an endoscopy to see why the stomach was hurting so much worse since October 2007, when I got sick. They discovered multiple ulcers numbering up to 10. his was gtreated with antibiotics in case of H-pylori (bacteria can be in stomach, treated for it even though it was negative, I had it in the past in a stool test, and we treated it then too.) and other soothing medicines to heal the ulcers. Today, July 29 of 2009, over a year later I went back in for another endoscopy to see that the ulcers were gone, and the upper GI system is doing good. The axid is proved to be helping me.
I can't say that my stomach will stay well, as I am still on hard core treatments for Lyme and coinfections and don't plan to be well soon, but it is encouraging to know I am doing a little better in at least one area! :-)