I'm confused, I guess. What do you mean "according to them have gained very little weight"? Do you know what your PP weight is and what you weigh now? That comment just kind of made it sound like you were going off of what they said you weighed, not what you actually know to be your weight gain. Just trying to get that cleared up!
Also how are they measuring you? Did the pull out an actual tape measure? Was it just an eye-ball look? Did they feel?