Physically, it's just a muscle required to keep one alive.
Curious then, that a muscle with no other purpose than pumping blood could ache so thoroughly...
And even more curious, the way that muscle affects everything else in the body.
When a heart aches, the lungs have to work a little harder to breathe. The ears work a little harder to hear. Eyes try harder not to cry. Brains ache with the struggle of trying to determine the problem and how to solve it.
Such a damper that a little muscle can put on an otherwise healthy being...
So then, how does one fix a seemingly physical issue that doesn't seem to have a tangible cause?
Riddle me that...