It's okay. Stop beating yourself up for being worried. He really does need to get himself checked out thoroughly by his physician. His pain doesn't sound good at all.
You now can go dimmer again. You can't help but be worried when you know that they are telling the truth about such pain. You are a very kind and loving person and he knows that he can rely on you to be there. This once again proves, he doesn't know what he wants. You know the drill, so step back just a little bit now and see what transpires.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.