S.K.
Her ears could be causing some major vertigo that could be making her nauseaus. Or she could have a easy gag reflex so the food makes her throw up. Is this new? Has she ever been able to eat table food and keep it down? My son got tubes when he was 11 mos old and really didnt walk or creep along furniture but within a week after getting his tubes in he started walking everywhere. I think with him his balance was off due to his chronic ear infections. I might find a different doctor or take her straight to an ENT instead of going through the pediatrician. They should be able to help you out.