She doesn't bring it up, but she certainly thinks about how 'overloading' normally mixes with Darin. Such as that lovely hole he created in the roof, that one time...

However, Shiro saying "don't rush it" gives her an idea.

"That goes for you, too. Until both of you are feeling better, I want you two to take it easy."

Maybe concern over their friend's well-being will convince them both to look out for their own.