Not Eating But Gaining Weight

My big girl has not eat for two weeks now. The first week she was deep in shed, this time she just refused. However, we weigh our snakes often, and I found that she gained about 30 grams, even after a BM. then last night, when we tried to weigh, our scale said "Error"
Our scale only goes up to a certain amount, so we know she's gained even more weight. She's also looking pretty bulgy. Does this mean that she is building follicles? Would building cause the snake to gain weight?

Thanks.