Ok my ba

by was born on December 17th and is still in the hospital, She is in the best childrens hospital in orlando but we cant seem to find out what is wrong with her, if you have seen anything like this please let us know so we can give the doctors some ideas.
She had surgery to shorten her esophogus and put in a g-tube because every time she ate she would get a bradia cardia and throw up, well the throwing up has stopped but the brady's haven't every time she eats. we have done every test imaginable spinal taps,EKG, EEG, CT SCANS,CBC AND MRI'S, CHROMOSOME, H TYPE FISTULA
and everything always comes back normal.
Now he has her on pheenabarbe because he thinks is it might be a neurological problem,
but she seems worse on that med, it makes her drowsy and her oxygen sat is real low so they have her on nasal canula.
When it happens now it is like she gags and then she has a brady, when she is eating. She always brings herself right back up. She cant throw up now because of the surgery. She eats though the tube now. He is going to see what she does on continuous feeds. She is now 1 month and 11 days old and we are dying to take her home but we know we cant till we find out what is wrong with her, she has the Doctor puzzeled. She does have a small VSD in her heart he did another ex-ray today to see if it has anything to do with that. Thank you for any ideas.