My Daughter During Her Pregnancy At 6 Months Had An

My Daughter during her pregnancy at 6 months had an Ultrasound at a hospital she was sent to by her Doctor. My Daughter was told the fetus had an enlarged Gallbladder. Her Doctor sent her to another hospital that was more advanced to get a second opinion, the doctors there said the fetus was fine, and saw nothing wrong. My daughter had my Grandson 2weeks ago, and he has been experiencing gassiness, and milk coming out of his nose and mouth, and near choking. We took the baby to the Pediatric Doctor whom exchanged the baby's milk, and prescribed medication due to he was diagnosed with acid reflux. He's gotten better but still gets gassy and has very frequent bowel movements. Do we need to get another opinion to make sure it's not his gallbladder?