Could Recurring Burning Pain In Stomach Of A Child Indicate Ulcer?

I think my 8 yr old daughter has a stomach ulcer caused by H. Pylori. Her symptons include burning, aching and constant stomach pain and nausea. Which comes and goes through out the day but also may go 5 or so days without a problem and then it comes back. This has been going on for several months. Are we on the right track thinking this is an ulcer? Tana