I think if it exists on earth and someone can use it to heal, it is from God. I don't think that God expects you to ask over and over again, this time louder; or that you need to lock yourself in a closet until you feel better. All that is required of you is to heal yourself, and give gratitude to the One that created all these things. Just by being grateful always connects you to the One, and when we are close to that energy force, our lives are revitalized via gratitude.
God is more anxious to give you what you need, than you are to have it. Think of your own children, and how they cause you to react, in spite of your own judgement. God wishes you to be well; he does not benefit by keeping you sick, dependent on meds, and others. You have now become a burden on society and family, and how does that serve God again?