Thanks again, Sizz and Michele...
Actually she has always been heavy. The dietician pointed out to her shoe size (which is now bigger than mine, though she is still about 20cm shorter than I am) and warned that her seeming to be getting worse may be due to the fact that her obesity is starting to hinder her vertical growth.
After being told of the negative results against diabetes, thyroid disorder, and intolerance against lactose, she told us to try a gluten free diet for a while and watch for any change. Her mother was informed about this, but I am not sure she will actually follow this kind of diet. They regularly eat pasta and pizza, which are full of gluten, so I am a bit concerned.
I really wish I were more competent communicating in Italian with the specialists (I am okay with everyday chitchat but this kind of dialogue can get too complicated!), so I could just take her by myself without Cris sacrificing his work. Ugh!!
We will see what we can do, and thanks again for your support. It means so much to us!!