Welcome to Christian Chat, Kate. So glad you are a Christian. Far, far better to be lacking physically than be lacking spiritually. We have hope. They have nothing that will not fall out from under them in short order. Do not envy them, no matter how healthy they may appear at the moment. This life is so short and fleeting for every last one of us. Hold fast to the Master's hand.
I will pray that you have peace, freedom from pain, and complete and total healing. It will come. Just a question of His timing.
God bless you. dear.