I personally don't mind if you decide to take a rest, and I am sure the others as well. It's not like having a health problem is one's fault. So, you don't have to feel guilty about it.
Moreover, the game can't continue if something bad happens to you, and I believe everyone doesn't want something bad happens both to you and the game.
My point is, you've work hard (and great one too), I am sure everyone will understand your circumstances.