Rapid weight loss and stress

So I was diagnosed not long ago (almost a week). I struggle with binge eating so I was eating almost exclusively carbs and high sugar foods for some time. I pretty rapidly changed my diet and am doing low carb/smaller portions and was also started on 500mg metformin 2x daily.

At my doctor’s visit on Tuesday, I weighed 317. Today I’m at 310. I know folks here aren’t doctors and cannot say definitively if this is bad or not, but should I be alarmed?

I also plan to talk to my doctor about this, but I’m wondering if I should contact her sooner than later.