I am glad your Gallbladder wasn't an emergency. I haven't had gallbladder surgery but I have had laparoscopic surgery twice and will have my third in September (which I hope will solve all my issues and I won't have to have another one), and they all have been pretty easy to recover from. The first couple of day are the worse and I think the worst pain is from the gas they pump into you. Just take it easy and remember to get a little bit of walking in (as in just walk a bit around the house at first, then maybe the driveway, then around the block). This will help move the gas out faster as well keep you from getting clots.
Sounds like you had a good trip despite some lows. I am so proud of how well you have done with losing weight. Those small yet big victories are the best. I have stepped back in what I was doing (Jazzercise) as I was in more pain and felt I needed to start losing weight and build stamina before going back. So DH and I have been walking every day. Each month I set a goal for how many minutes I want to walk. I started in April with the average of 15 minutes a day for the month. I hit that goal and went to 20 minutes a day in May and then this month is 25 minutes. My goal is to lose 10 pounds before surgery in September. After surgery I will have to build my time back up again. DD has already told me she can see a difference but I haven't noticed it yet.
I can't wait to hear about your cruise!