Girls, hello everyone! Such a question, I'm about 6 weeks now... and …

Girls, hello everyone! Such a question, I'm about 6 weeks now... and I always want to eat... if we don't eat, it starts to feel sick, my head spins... and all the time I feel like falling asleep ? Just in the last time, the toxemia was completely different, on the contrary, I couldn't eat anything and felt nauseous from the sight and smell of food... So, the question is, is it normal to always want to eat and sleep? ???