That’s so difficult to watch and I totally get it. O don’t know how many professionals are equipped to support kids with ARFID as it’s still quite a new concept. I hope as your son grows things get a little easier, but one thing I was told is that if you can get milk, or calcium in any way into him that’s almost more important than anything else because their bones need it. For my son that meant ice cream and I make my own so I know it’s natural but at least that’s something he eats and is good for him