Very best of luck!  It sounds like you've suffered plenty. 

As a VSG-er, I have not found anything I can't eat.  So in that sense, my "diet" is unlimited.  Of course, that isn't what is healthy, so that's not what I do.  For me, I've been successful focusing on protein and produce.  I don't count carbs or fat or calories or anything.  I just try to make sure that everything that goes into my mouth is either protein or produce.  And I only eat delicious foods.  :)  Fortunately I like raw fruits and vegetables and meats and beans and nuts.  I occasionally have sweets, but I just don't crave them like I used to and don't enjoy them as much when I have them. 

When you are eating properly and you're not losing.

When you are close to goal and those last few pounds just won't go away.

When you go to a party and find yourself feeling that it's just not as fun now that you can't gorge yourself. 

When you want to celebrate something, but can't think of how to do so without the celebration centering around food.

When your feelings are hurt and you can't turn to food for comfort like you have in the past.

When another WLS patient is losing faster than you.

When you go to yoga class and can't do half of the poses while the rest of the class seems to be experts.

Seriously, sometimes you just have to reach inside and find some kind of i nner peace and try to reassure yourself that the weight will come off if you keep eating correctly, that there are other ways to celebrate and nurture yourself, that you'll get stronger and healthier if you just hang in there. I don't know where the strength comes from, but it's in there.  Just keep looking for it.

Lastly, here's a tip I learned from an Overeaters Anonymous lecture.  The lecturer was annoying and I was about to stop listening when she started talking about resisting cravings.  That's what I was struggling with at the time.  She said she'd just pray "please help me make it 5 more minutes".  That night I put off giving in to my craving for five minutes at a time until the craving passed.  I've used that strategy several other times successfully.  I hope it helps you, too.

It's ironic you posted this.  I'm low in Vitamin A, too.  I know this b/c one of the Dr.'s at my practice (Dr. Moazzes) is married to an optometrist *****ad about bariatric patients be low on Vitamin A.  So they started testing their patients for Vit A and are finding some who are low on it.  So I'll be starting a supplement.  And trying to find foods that have it.

I felt that way, too, for much longer than other people.  I just didn't feel right.  For me, it was just part of healing.  It didn't indicate anything was wrong.  At about 6 weeks I began to be able to burp which made a huge difference for me.  But in general, I felt that way for quite a long time. 

I feel great now and have not found any foods that I can't eat.  There are plenty that I avoid b/c they're unhealthy, but none that I can't tolerate.