Ugh yes I'm 7 weeks too and one of the most annoying things in the world is not knowing whether to eat, go to the bathroom, or vomit. XD The other day I had one day where I felt normal and I was a bottomless pit! I ate everything that day lol
Yeah it's just a normal part of the first trimester lol eat little snacks throughout the day, stay hydrated and get as much sleep as you can! Congrats :)