Do you do WW online, or go to a group? If you go to a group, I'm sure your group leader would have some ideas to help. I think the times I've not lost well may have been due to miscalculating things, I gained when I was in Spain over summer as I was basing my estimated cals on English versions of things, like bread rolls for example, and they were probably made differently and much higher, could that be it? Is there anything you've eaten regularly recently that could have been calculated wrong??