Today's Children's Hospital Visit

We took our ten-year-old to a children's hospital today for some issues she has been having for about a year now. After the first nine months (of her doctor saying it is a virus), he referred to her the hospital.  They want to do an upper endoscopy and a colonoscopy under general anesthetic.  I wasn't expecting this right away.  I thought they'd recommend diet restrictions (like milk in particular) but they went right to the invasive procedures. I wasn't happy about that.