I had this happen when I bought a scale. I had never owned one and just used the one at work once a week. Then, I decided to buy a scale for home and it was different (higher of course!). I just bit the bullet and changed my stats to reflect the weight on my home scale and after a few days to a week I had gotten used to it.

I hate how the scale can determine my mood. I'll be feeling really good about this WOE and then I weigh myself and I'm up a pound or at the same weight for ANOTHER day and it blows my mood. I did get my DH to hide the scale on me for 3 1/2 weeks - boy, was that ever a 'weight off my shoulders' and I was much more relaxed and happy. Try it !!!!