I have had a Withings Body+ scale for two years and had a couple of profiles working fine with it. So, I bought the BPM+ about five months ago. Everything was working fine until a few weeks ago when my readings stopped showing up. This morning I realized that the readings were going to my wife's profile, even thought she's never used the thing. I have weeks of readings that I'd like to move to my profile. How do I do that?