Hi ,
I think we all have and will have that fear yes! But just stay focused and keep in the back of your mind who and what made you do the surgery In the first place . I am a Sleever I had my surgery August 24,2012 and I was 264 now I'm 150 I am more than happy with my results but have had those moments and still have issues with omg pleas don't let me gain any weight but the truth is you'll loose weight tremendously but you also gain a pound or two like limbo but you will be successful trust me . Also keep in mind that you don't usually reach you Plato until your at least a year out and even than you'll never be the size you were! Good luck