Why would God use someone as a vessel to heal others, but not heal the person He is using to heal others?

If a person is living a righteous life, prays everyday, prays for others, helps every way possible, lives his life according to the Bible, and stays in God's word every day, why is it God will not heal him, but uses him as a vessel to heal others? It doesn't make sense.

Clarify • Share • Report • Asked June 23 2015 • Donna Crayne