I am tired of this running around to Drs for my son! They keep telling something is wrong and to do…

I am tired of this running around to Drs for my son! They keep telling something is wrong and to do this, but it doesn't work, then tell us they want to admit him and then don't. Trying to give him expensive ass formula to see if it will help but don't know if it will because they won't test for anything!