How to get over weight loss Plateau -Help!!

I had WLS three months ago and was doing great with my wieght loss. I've lost a total of 83lbs. But in the last three weeks I've only lost 2 pounds! Has this happened to others? How did you get over it? The only thing I've changed is more exercise. I'm still eating one or two small meals and using my protein drinks.

I was told by a nutritionist if you do not eat you will not loose. Make sure to get in the 3 meals a day (protien mostly) and use the protien drinks in addition for between meals if needed When you do not feed you body it goes into a "starvation mode" and says okay if you ony feed me a couple of times I am goin to store this as fat and that stopps the weight lose. If you feed me I will use some for fat and some for mussel then the fat will burn off and you will loose My doctor told me the acceptable loos is 1.5 pounds per week so that's still not bad