I know it's hard, but PATIENCE PATIENCE PATIENCE.
You didn't gain all the weight overnight, and you certainly aren't going to lose it overnight. These things take time. Yes, even with WLS. Put your nose to the grindstone, keep working your program, and it will come off. I promise.
Our bodies are weird. You would think barely eating would cause the weight to fall off, but it just isn't as simple as that sometimes. With the surgery comes trauma, hormones going crazy, etc...it's not all about "calories in, calories out" right after surgery. It's so much more complicated than that. Here's why you either don't lose a lot or stall so early out:
A "stall" a few weeks after surgery is not uncommon, and here's why.
Our bodies use glycogen for short term energy storage. Glycogen is not very soluble, but it is stored in our muscles for quick energy -- one pound of glycogen requires 4 lbs. of Water to keep it soluble, and the average glycogen storage capacity is about 2 lbs. So, when a patient is not getting in enough food, the body turns first to stored glycogen, which is easy to break down for energy. Then when 2 lbs. of glycogen is used a patient will also lose 8 lbs. of Water that was used to store it -- voila -- the "easy" 10 lbs. that most people lose in the first week of a diet.
However, when the body stays in a caloric deficit state the body starts to realize that this is not a short-term problem. Then the body starts mobilizing fat from adipose tissue and burning fat for energy. But the body also realizes that fat can't be used for short bursts of energy. So, it starts converting some of the fat into glycogen, and rebuilding the glycogen stores. As it puts back the 2 lbs. of glycogen into the muscle, 8 lbs. of water has to be stored with it to keep it soluble. So, even though the patient might still be losing energy content to their body, the weight will not go down or it might even gain for a while as the retention of water dissolves the glycogen that is being reformed and stored.
