First time pregnant, morning sickness is awful

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It’s my first time pregnant, and started getting morning sickness symptoms almost immediately around the 3/4 week mark. I originally thought I had covid due to the constant nausea and feeling light headed. (Wasn’t really trying for a baby). I finally decided to take a pregnancy test because it seemed a lot easier than getting tested for covid and it came back positive. But I’ve just been constantly nauseas, little to no appetite, feel light headed, constantly tired, and a feeling of something in the back of my throat that makes my gag reflex flare up horribly. Brushing my teeth is almost a guarantee for me to start puking. I’ve lost 5 pounds in the past 4 weeks, not too big of a deal as I’m a bigger girl. But is this normal??

I’m only 7 weeks pregnant and haven’t been to the doctors yet, first appointment is next week.