Re: won't eat - very worried
I have had 2 boys got through feeding therapy and I understand your frustration. Your baby is going to turn 1 soon, but remember they don't magically turn into toddlers eating cheeseburgers and big solid meals. Some babies need more time to get there.
I would not at all be concerned with the growth the last month, once they hit 1 it slows considerably. Is he walking or crawling and very active? That usually accounts for the lack of gaining.
What solids is your son eating? Finger foods? Purees?