Huge weight gain

Has anyone gained a lot of weight during pregnancy??? Like close to 100 pounds? I'm terrified! I used to be thin before pregnancy at like 150 pounds being 5'8, I used to have an eating disorder and I lost close to 80lbs my midwife told me it can happen where you gain that weight back and then some!!!!! I got told today by a different midwife that I might not be able to see them anymore because of how much weight I have gained! I've gained about 100 pounds so far at 36 weeks:( anyone experience this?!? Please no slamming