Is this normal?

J
So I'm 7 weeks today and I know everyone's bodies react differently and with crazy hormones, it's normal to feel uncomfortable sometimes (both mentally and physically.) But this past week I have honestly felt completely drained. I've had nausea throughout the entire day, I barely am able to eat a complete meal and I have just felt so exhausted. I'm worried because if I feel like this now and it's only week 7, how am I going to feel the next few months? I have a doctors appointment on Friday where I will definitely be letting him know about this but does anyone have any tips on how to feel a bit better? I have been taking naps when I need to but I just need to be able to do every day things again. Help?