Tigger76, WELCOME to the DIS boards!!
I think it's safe to say that we (those that post here) have ALL been on one or more Disney cruises.
Your eastern honeymoon cruise will take you to St. Maarten, St. Thomas and Disney's private island,
Castaway Cay. They all have a lot to offer - too much to go into without knowing a little more specifically what your interests are.
As for motion sickness - don't let your mind get the best of you! The stabilizers are amazing on these ships and if you keep telling yourself you're in a grand hotel (which, in a way, you are!) you won't notice much movement, for the most part. If it does bother you some, I find that a tablet of 'Simply Motion' does the trick in a hurry!
I wouldn't know where to start as far as recommendations, other than to mention a couple of "don't miss" things, in my opinion.
Palo's. You GOTTA dine at Palo's!! Try brunch, dinner, or both. Very romantic and unforgettable.
The surial bath. Wonderful experience for a couple!!

You book it at the on board spa. You'll love it.
There are SO many more things to do - the list is practically endless. Choices depend on your taste, lifestyle and budget. Tell us more about yourselves and you'll get lots of good feedback.
'Beano'
