It was always bizarre how some foods were ok for 1 person and not for another and part of the reason it can be so frustrating but it all boils down to just how your body deals with the food and how it's functioning.

Smudgy - If you are loosing weight and always hungry then you may find going on insulin to keep your levels under control will give you more room to move with what food you can eat and it'll mean that you can increase the amount of food you are eating to stop the weight loss and also the hunger. Being PG makes you more hungry as it is let alone being hungry and trying to deal with the GD. I honestly did not get hungry very often and if I was then I knew I hadn't eaten enough at my last meal or snack.
You need to make sure that whatever you are eating has the highest amount of nutrition possible. The GD does limit your diet and that's a given fact so whatever goes into your body needs to be food that gives you the nutrients and vitamins you need. Hence why chocolate and junk food is off the menu because they really provide your body with little to no benefits. I didn't eat any processed foods (again due to the fact processed foods are more convenience foods than nutritional - give or take a food specific foods)..

Good luck everyone and keep asking questions..

Belfie - Get yourself off to the GP and get your referral. You'll feel much better once you get it all over and done with..