From here.
Bruce's head is fuzzy and his mouth feels like cotton, and he's sore in a way that might indicate being moved while he was unconscious, and whoever was doing the moving wasn't being very gentle about it. In other words, been there, done that, but the issue here is that he doesn't remember Hulking out. That's never been the case, not since he really figured things out; he almost always remembers that special agony, or at least remembers the stress leading up to it because he's trying so hard to hang on. This time, there's nothing -- a quiet peaceful calm in his memory up until blackness and an even deeper calm.
Another big clue is that he's still wearing all the clothes he was wearing before, and they're all in one piece. Danger, Will Robinson. The wry thought is just some neurons attempting to hold onto his sanity as he pushes himself up on the cold stone floor and takes in his surroundings. Austere, huge, dark, sterile, cold, Transylvanian. Great. He passed out and woke up in a Victorian horror novel.
Oh wait, no matter how sarcastic he is, he's still here, and that whoever it was who brought him here sedated him first is bad news. He doesn't want to make any sudden movements yet, still remarkably able to cling to calm, though probably that's helped by still being half hungover by whatever those drugs were. He sits up and casually and quietly tries to take in his surroundings. No matter what's going on or where he is, he'd like to let his head settle before he makes any sudden movements or, you know, Hulks out and smashes his way out.
Bruce isn't above deploying the big guy when it's necessary. And putting Bruce in captivity is right at the top of the list of Ways to Make Bruce Hulk Out.