First B-12 shot - but could increase appetite?

Hi - Even before having lapband surgery (Jan 9, 07), I wanted to try B-12 shots to see if it helped with energy. My primary just gave me my first shot, but said that it might stimulate appetite. Of course, I don't want to do that, but I've waited so long to see if B-12 is helpful in some way that I proceeded with it. I'm not losing much due to "soft food syndrome" (ha!) so I figured now was the time to try. Did it stimulate your appetite? Did it give you more energy? Any other benefits from it? What are the usual reasons people get B-12 shots? Etc etc

Also, I posted on the lapband support board about solids not being solids and being back to self-control. Not losing weight now. Lots of foods I thought would cause restriction slide on through and it was quite an unpleasant shock. Even though many bad behavours have stopped, eating lots of Protein is still keeping me at a standstill with the weight loss partly due to having to get a grip on reducing carbs. I still can't believe I'm not losing weight since I have had so many improvements. Others of you must have this problem. Any comments would be appreciated and I'm new so I'm just getting used to which boards to post under. Sorry if this was a repeat of what you read on the other board.

Thanks!