I think the two are way too different to actually relate, beyond them sharing the same word. :/
But on the other hand…
I’ve heard of war prisoners being tortured in ways that are unimaginable, but who were, eventually, rescued. Many of them go insane or end up killing themselves. Physical pain can be disastrous and horrendous, especially when it carries into your mental like that.
That’s not to say that mental pain is nowhere near as bad; people often hurt and kill themselves because of it. Life long mental disorders, too big a tragedy to handle, psychological trauma…
But people can adapt, lie to themselves, delude themselves, or get over it, or learn to deal with it somehow. If your leg gets shrapnelled off, well you can’t pretend it’s still there.
But either way, people still manage somehow. (Wheelchairs, shrinks, pills, hell, even drugs and booze; those last two really aren’t an answer, but I suppose they can be seen as alternatives by some.) Even though the two can meet and engender the other, I’m saying I have no actual answer because as simplistic as this question sounds, this is way too complicated for me, and I don’t se a proper contrast by which to relate them by.