if your weight loss suddenly stopped you may be retaining water. No loss in 2-3 weeks and you’re no longer in a deficit and need to lower calories or add activity or a combination of both. Adding...
Any tracking device could be removed easily. You can remove a maglock on an AR in 5 minutes with a Dremel tool if you live in Calif. Plus with 400M or so guns in the US, GFL with that anyway.