[Honestly, Echo thinks the personality difference makes the fact that he's not doing well far more obvious than his gaunt appearance or the bones sticking out of his back. She has to take a moment to think over the fact that he asked such a strange question before thinking over her answer.]

No. I am not sure what to call many of them. The pain is not exactly a physical thing; not in the sense of a wound. It is...

[Finding the names of the emotions is already hard, describing them isn't much easier.]

...the intensity. I do not know what to do.