Hi! I just made reservations for a big family cruise for the summer of 2012. Five days including Nassau, Castaway Cay x 2, and a day at sea. One of the party, my BIL, has Parkinsons. At the time of the cruise, he will be 60 and have lived with Parkinsons for over 10 years. Otherwise, he is extremely healthy. He has had a deep brain stimulator for several years but recently had it repositioned. He has many balance issues with huge extremes in good days and bad. Hopefully, the repostioning surgery and further adjustments will make improvements. My sister is very excited about this cruise but I'm doing ALL the planning. First up, we need trip insurance. Quickly, because of the pre existing condition. I have about a 7 day window. What do I need to consider? TIA