When you enter into a relationship with a primary care physician, your family doc, you need to be able to trust that person. If you do not trust their judgement and advice then you need to find someone that you do trust.
You are my family and I want nothing but the best for you. Please also, never leave your doctor's office without asking every question you want to ask and be completely satisfied with the answers you are given. This is how I try to practice with every patient I see.
Just a little rant, it will save you or your children unnecessary testing, travel costs, and anxiety.