I have not read all the posts, so if anyone has said this already, I apologize.
I have several questions to ask:
First, who are you to say what God's will is or is not for someone's life? I know you think that you are not doing this, but you are. Your claiming that it's all about faith, but yet you don't realize that God brings healing in different ways. He can use traditional and natural medicines as well as miracle healing.
Also, by just doing what you say we are to do, just stop taking all the meds, what if we are actually preventing ourselves from being witnesses to others who will only see us via the medical field and will only hear and accept it from us. Or what if because of going through an illness or crisis, God uses our experiences to help others.
True Faith is not revealed by saying I reject all medicines. True Faith is shown by how we live our lives.