I started at 1200 when I was 255 and I'm still at 1200 now. I honestly think that you aren't giving it enough time. From your previous posts it seems that you jump to conclusions a little bit. Please don't take it the wrong way!

I remember reading a thread of yours that said that on 1200 you lose 1 pound/day. Well it takes 3500 calories to lose a pound so it just isn't very likely. Just as is gaining 5 pounds from eating 600 extra calories/day (if you went from 1200 to 1800). It would take 17.5 days to gain 3 pounds if eating 600 calories above maintenance, and you weren't even eating above maintenance! Hope that makes sense to you. Give it time. Good luck!