Just got diagnosed and I'm always hungry and always tired

Britany
I just got diagnosed Wednesday with GD. I have already started changing my diet and eat habits, but I feel like I'm constantly hungry. I can't get enough food, which is really depressing. I also feel like
I have no energy. The smallest tasks take all my energy. I feel like I can't do anything anymore, even fix the nursery. I am pregnant with twins and 25 weeks 2 days. Can anyone give me some insight? Have they experienced this? Is it normal? I need help :( I have my appointment Monday with a dietician.