todders with hypomobility

my son has hypomobility which means my son feet turn inwards and he has flat feet also pegion toe, this also means his very flexable but to no weather or not its there to stay they got to wait till his 7-8 years of age to see he is now 4 years old he falls over unable to walk more than 5 min, knee hurt him ect wish there was more they could do rather than put other soles in his shoes but better than nothink . i am worried and i no there is other people with children which are more survier thats why i have opened this page.