We do pray to God when we are sick. We pray for healing, yes. However, we don’t view being sick, or suffering, or even death as the worst thing that can happen to a Christian. For us, suffering actually has meaning as we see the effects of sin and death in the world and it causes us to cling to Christ as our hope, that he will fulfill his promise to forgive our sins and to redeem the world from the power of sin, death, and the devil. The worst thing that can happen to a Christian is to die apart from Christ. For us, healing takes a back seat to praying that we should not fall into despair and lose our faith in times of trial.