Please help! my 4 year old granddaughter recently has been in severe excruciating stomach pain lasting a half hour which resulted in a call to 911?

Hopefully: She is getting full evaluation in the hospital for the etiology of the pain

Stomach pain: You don't say what the doctor concluded after evaluating her. I'm guessing if you called 911 that you went to an emergency room, but can't be sure. The first thing I thought of was to stop gluten. She needs to be evaluated if the symptoms continue. It might have been simply terrible pain from gas. I wish you the best!