Pregnancy symptoms hitting me hard

I'm 7 weeks today and these past couple days everything around me smells awful and makes me nauseas but I'm constantly SO hungry!! The hot flashes just make it worse. And if I'm not having a hot flash I'm freezing. And the cramps have returned like dull gas pains as well as what I think are round ligament pains? The sharp pains on each side by my hips? I feel low energy, shaky if I dont eat every few hours, low blood sugar, I just want to lay around and drink water and complain!! Thought this would be a good place to do so ;)