Have you ever been too sick to pray? I doubt it. Unless you were unconscious, you were not. You were probably never hurting too much to cry out to God. You were never too upset to pray. When you most upset you had to tell God.
But did you pray as much or as fervently after you began to feel better? I seldom have, and that is a shame. God often speaks clearly to us through illness, even if it is no more than a cold. But it is hardest to hear His voice when we are distracted by discomfort. When you are feeling a little better, you need to pray for sound insights. That is the time you will be able to fathom the depth of what God has been saying in the time of illness.