[Things are very difficult when one is physically incapable of expressing worry, because it has its roots in his fear.]

Ditch the sarcasm. I meant something's wrong with me, other than the intangible thing. This [he waves around them] is seriously probably magic.

[His face remembers what fear is like, but the rest of him doesn't, and so his expression ends up annoyed.]

There should be places where the dimensions aren't far apart. We might be able to appear to normal people there.