First, it is common to lose a lot of water right away, so that first 11 lbs is not going to be the norm.

Next, depending on metabolic health, hormone balance, etc., the next most common change is your body converting white fat to brown fat. This is good. Brown fat has more mitochondria and actually burns fat. It is also denser.

During this time, you may lose no weight, but you may lose size. It is important to measure everywhere you store fat (i.e. waist, hips, thighs, arms, etc.) to see if you are losing size. You may also notice it just because your clothes start fitting differently.

Even if this is not happening, losses happen in stair step fashion, not linear. Don't be surprised at having weeks with no loss followed by a "whoosh" type loss followed by another period of loss and so on.

I would suggest you do one of two things. The better idea, IMHO, is to only weigh about once a month. This way you don't get caught up in stressing about these stair step changes and you don't get caught up in freaking out about extra water retention now and then.

If you just can't do that, then track weight in a spreadsheet with a graph or use one of the apps out there to track weight so you can see the long term trend rather than just the day to day weight. I haven't used any of these, but I think one of them is called happy scale or happy weight or something like that. I know I have seen it referenced in other threads.

Anyway, hang in there. This is a marathon, not a sprint. You can do this.

Whenever it seems hard, just think of this:

Not to mention that many folks with an initial water loss often have a rebound GAIN as the body balances out the electrolytes again! It is entirely possible that you had a water/electrolyte REGAIN at the same time you had additional fat LOSSES... Or conversion of fat types as was suggested above.

We keep trying to do basic math (+, -, *, /) while our bodies are doing advanced chemistry, physics, biometric math, calculus, and goodness only knows what on Earth else!!! It doesn't hold up. What our bodies do is not as simple as what we see as numbers to punch in a calculator.

I always tell people that there are too many factors for us to control every aspect. Very few of us know exactly what our bodies burn at rest. Even fewer of us know (HRM aside - separate convo) exactly what we burn through activity or exercise. Calorie numbers on labels allow something like 20% error rate, so even if we're meticulous as we can be, we still have a significant margin of error on intake. Then add in things like sleep (quality/quantity/etc.), fluid intake, inflammation triggers, ongoing health conditions, the amount of sun/fresh air you got, your micronutrients, medications, stress levels, etc., etc., etc...and it could go on, further into the danger zone...

So we do what we can do - we use a consistent set of measures (food scale, same scale at home, same timing, consistent sleep, stress reducers, etc.) and methods as much as possible. And we hope for the best, because we can only control so much.

So let's do our math and remember that the body is a grand and mysterious thing - let's wait for it's magic, too, and just check in wholly every 4-12 weeks! (It takes 4 weeks for any changes to truly start showing reasonable results...and 12 weeks to reevaluate if something really is or absolutely is not working as expected - trends are more important in the long run than any temporary blip of a reading!)...