Don t withdraw your faith after. Primarily, believers are supposed to walk in health by method A . The wind and waves didn t change. The natural senses were given to us for the things in this world. C. God initiates healings supernaturally.
Man initiates healing through faith.
God uses gifts of healing, and working of miracles. Many would never be healed if God didn t initiate something. But many die while waiting for God to do something like this. God does move this way, as He wills, but it will not work for everybody or in every situation. Faith pleases God and without it is impossible to please Him.