It looked dead to me, but you might be able to tell if it's just pretending.

You're not going to get away with pretending to be sick.

It's easy to find out if someone is pretending to be sick.

She said that she's sick, but I'm sure she's just feigning it.

So, Shinkai pretended to be ill?

Of course I can tell they malinger, but who am I to judge?