If God responded to fervent prayer for a miracle healing this would indicate that God judged the one in need as worthy of healing. This would also mean if one didn't receive a miracle healing God had judged that person to be unworthy of such a grant. I wouldn't want any person who is on their death bed to think that God didn't find them worthy to save or even that God didn't care.
Wouldn't that be a horrible feeling to go out of this world with?
I don't believe that God intervenes in our lives, but I do believe that God Spirit is in everyone of us and the more we awaken to that power the more we are able to utilize it for physical, emotional and mental healing. Not long ago it was considered a miracle that our thoughts could have a healing effect on diseases of the cellular level. Today that idea is commonplace.
We know negative thoughts of anger, resentment, guilt, shame and feelings of unworthiness weaken us. We also know that thoughts of peace, faith and appreciation for "what is" in the present moment, strengthens us.
Above all else love is the greatest and most rewarding emotional experience we can have on this earth. Whether one is ill or not, miracles happen when we bathe ourselves daily in thoughts of love.