[aaronbeen]

It's been over 20 minutes and he obtained chips somehow if he has you covered. Shouldn't you have a read?

Without reads I'd consider betting strong, possibly even potting it every street, and calling down a raise. Your line allows him to fold AK pretty easily. You could check call the flop and lead the turn if you are concerned with getting some extra chips vs a mid pair.

Despite what I said, once he fails to fold to your turn checkraise (which informs him you can beat 2 pair) I still think you have to assume he is a donk with AK and call. His flop bet does not look like AA or 99. He could have AKh or something. The flu-sleep situation is also a factor.