Suzaku's concern made Enki able to (somewhat) supress his worry again. He needed to hide it good, anyway, otherwise Shōryū would notice and ask.

And his king didn't need to think about that, in the off-chance that he hadn't already factored that into their need for a speedy return home (not that 'speedy' felt very possible for the moment).

"I'm fine. Not feeling sick," Enki said, enforcing the words with a narrow-eyed stern frown. Because he did feel fine.

Of course, he'd never had even the faintest trace of shitsudou before, so he had no idea how that felt, so he wouldn't know when it started.