Not hungry 8 weeks

Does anyone else feel like they are not very hungry ever?! When I do eat a meal, after I feel nauseous. Something will sound really good and I get super hungry and then I eat it and feel blah like throwing up. I'm almost 8 weeks now and I haven't gained a pound. I think I've actually lost like 5. Most of the time I'm running to the toilet because I have diarrhea. I never want to eat breakfast. I feel like I have to force myself to. I know I know I need to for the baby but nothing sounds good. Does anyone else feel like this?