That.. is an interesting answer. It seems surprisingly honest on Allen's part, especially since it means he doesn't bother to cover up the fact that he's not entirely feeling 100% to begin with.

Alice curiously raises an eyebrow and finally stops walking when she's by his side.

"You don't know? And why is that?"

She figures it may have something to do with everything that happened on the island, considering how intense that must have been for everyone.. But she can't be sure, so she might as well ask.