When the even was come, they brought unto him many that were possessed with devils: and he cast out the spirits with his word, and healed all that were sick:
That it might be fulfilled which was spoken by Esaias the prophet, saying, Himself took our infirmities, and bare our sicknesses.
-thus Matthew 8:16-17. By implication, Christ paid some some bodily tax to heal. There are other hints of it in scripture.
This verse also suggests the idea expressed more fully in Alma 7–that Christ came to atone for pains and griefs in addition to sins.
A powerful idea.
But the truth may just be that the distinctions we make between sin, mistakes, weakness, and incapacity are all artificial.
We are here. Our destination is over there. The distance must be crossed. If we call one part of that journey repentance and another part growth through adversity, what does it signify? It is all one.