I get this too! I'm 6 weeks tomorrow and I'm hungry all the time and feel sick and dizzy if I don't eat. Fortunately, nothing is making me throw up. Unfortunately, this means that I eat everything in sight.
I'm about 9 weeks also and have the same problem. Try eating apples . Things that don't have a lot of flavor but you'll get a lot of nutrition from. Like veggies or fruit also if you throw up everything go to the doctors and ask for ondansetron pills . I take one evrytime I get sick and they really help I don't know what I'd do with out them . Or try ginger pills I hear those help also but I've never taken them myself.
In my first trimester I didn't eat hardly at all without feeling like I'm going to throw up. I actually lost 10lbs but one I hit my second tri I eat everything lol don't worry it will change. I'm also a ftm