This sounds like it is just a precautionary thing, but its never a good sign when any pitcher goes to see this guy.
This is an interesting article though. It sounds like Beckett really just doesn't feel comfortable without getting the go ahead from Dr. Andrews. I just wonder why it took them so long to send Beckett down to see him.
http://weei.com/Beckett-s-Go-To-Guy/2867959