Glad he's better, but I would be a bit careful with him for about a week as if he did pull something it might still be a bit "weak" for a while.
I'm not saying that you shouldn't walk him, but perhaps no rough and tumble for a week, even if he seems to want it (they don't always know best!)
However, if he's anything like Buddy then he's a real drama queen and there was probably nothing wrong to start with!