S.H.
Her Pediatrician, SHOULD be referring you to a Specialist.
Pediatricians, are not specialists in this area.
That is why, the Ped. is not relaying pertinent information to you.
Any Pediatrician, for things that are out of the norm or needs further diagnosis and treatment, will and should... be referring the patient to a Specialist.
Just as: if the child had heart problems, a Pediatrician would NOT be doing surgery on the child. Because the Pediatrician is not a Pediatric Heart Surgeon nor Cardiac Doctor. And, the Pediatrician would be, referring the patient to a Specialist.
Thus, you need to request this, from the Pediatrician. To be referred to a pertinent Specialist for this type of issue.