11 month old with GERD?

My 11month old is getting tested for GERD after being failure to thrive for weight. She is 15lbs 11oz. She has had a red throat and chest spasms while lying down or reclined. She also has fluid in her ears. She wakes up at night constantly(10-15 times). Going to specialist on the 17th. Just wondering anyone elses thoughts. She doesn't vommit or spit up could it bw a mal absorbtion problem?