1) Don't go alone. I did. They don't have call lights and only 1 nurse checked on me on a regular basis. My IV ran dry twice.
2) I would bring own pillow, blankets, and a heating pad.
3) I woke up after surgery with a Nitro Patch, giving me lots of Nifedipine and checking my blood pressure every 15 minutes. So I obviously had some heart issues during surgery. They said nothing about any problems but as a nurse I knew what the medicine was for.
4) I had really bad esophageal spasms and demanded more pain medicine. They did go buy some IV Tramadol. Everyone gets scheduled Dilaudid.
5) The van drivers were the most informative (and they are hilarious). The day after surgery they take you out to some stores that are deemed "safe" for souvenier shopping and a drug store that you can get prescription meds without a prescription (except narcotics) for very low prices.
6) The hotel was really nice and modern. A grocery store is next door which may be handy.
AFTER SURGERY RECOVERY:
1) My esophageal spasms lasted a month and I became very dehydrated. The sphincter between my esophagus and stomach is still closed when I get up and I have to drink some soda to relax it before the protein drink. I see that some other people also have this problem.
2) I can eat almost anything. Sandwhich type bread is a no-no and this seems pretty universal. I wouldn't buy too much of one food prior to surgery. Food tolerances are highly individualized. I had immense problems with pureed foods getting stuck. For me, crackers are my go-to food for pushing food down my throat and eat some after every meal. I skipped the pureed foot and moved sraight to solid food. I can eat pizza, bratwurst, and other items I thought I would have to give up forever.
3) Don't buy too many clothes at a time. You'll move down sizes way faster than you think.
4) Take Biotin supplements to help prevent hair loss. Its pretty common.
5) Bowel dumping also seems to be common. I get maybe a minute's warning. I keep extra clothes at work just in case. If I'm travelling or on vacation I don't eat at all until the end of the day. I will drink soda during those days just for the energy.
6) If you're just thinking about having surgery just do it. I mulled about it for 10 years before pulling the trigger. The only regret is not having it done earlier. Losing the weight doesn't cure all of your problems but it sure makes them more manageable.