Hi Christine!

Yeah, I would definitely go get some testing done. It could be you are low on certain vitamins, like D or B12, which both affect weight. It could be thyroid or pcos (which can develop at any time in your life) or high cortisol (which is related to stress), etc. Best to rule out anything medical first. You know, I eat like you do, except I have one day a week when I eat anything I want. I usually gain a lb or two in water weight (since carbs cause the body to hold water) the day after, but then I continue losing. It keeps me from feeling deprived and I think it helps to confuse my metabolism so that it doesn't slow down like it might otherwise. In fact, this week Saturday was my "Carb Day" and instead of the usual water weight gain on Sunday, I actually lost half a lb. That's happened a couple of times now, and a couple of other times I maintained the next day. I'd go get testing done if I were you, but if it checks out, you might think about easing up on how strict you are being with your diet and see if your metabolism will give you a little more love for it. Good luck!