My Nephew Is 8 Months Old. He Was Born With

my nephew is 8 months old. He was born with a mild club foot that has been corrected by wearing the special boot braces. He has always had a serious vomiting issue as well. when he was a few months old they found his soft spot was closing sooner than it should. However after seeing several specialists and having tons of tests they determined to just watch it. He cant track well at all with his eyes so they put him in glasses. And as of date he still cannot hold his head up or roll over. They had genetic testing done and seen neurolo
gists and cannot seem to find an answer. would you have any suggestions for us? I should also mention he is small in size but so is his mom so im not sure that is a concern.