E.O.
In terms of H Pylori, it usuallyproduces abdominal discomfort/pain, but I wouldn't necessarily attribute the severe constipation to it. The best way to test it is to look for it in stool, since it tells you there is a current infection, while the blood test only tells you you've had it at some point, but may not neccesarily have it currently. Most people tolerate the treatment pretty well and the infection, and therefore the abdomonal symptoms, resolve shortly after. I would do the treatment, and see how things go, and if the constipation continues, I would recommend going to a pediatric gastroenterologist; if you have a PPO you can do it on your own, otherwise I would discuss a referral with the pediatrician. I imagine you are already trying the usual stuff for constipation, tons of water, avoiding constipating foods like starches (rice, banana, etc) and giving her lots of fiber, having her drink OJ that has all the pulp, and eating fruit like mango and pineapples, and even maybe adding some fiber that can be dissolved into juices or soups. Good luck.