Pregnancy is kicking my butt

I'm 6w2d today and I've been feeling so miserable the last couple weeks. Every day is worse than the day before. This baby is kicking my butt already! I'm exhausted all the time. I can't even do a load of laundry without feeling like I'm going to collapse. But when I sleep my dreams are so vivid that they wake me up multiple times a night. My boobs feel like someone is tearing them off my chest constantly. No morning sickness or nausea, but almost everything I eat makes me gag and I have horrible heartburn. Is all this normal? I need some reassurance that this will all go away soon! I don't know how much more I can take!