You didn't chicken out, you made a decision that was what you wanted. Gosh, not many people get this kind of great vacation, so have fun and schedule it when you get back. I admire you. You are dealing with so much, everyone needs a break. I don't consider you a chicken at all. I think you are wise and know that you would have been stewing the whole time. Good for you. Now get one done. I am having my 6 month mri today, I don't have any symptoms, just rountine follow up. Let us know how it turns out. take care k