Struggling with HG

This is my second pregnancy. It’s completely different and harder than my first. I lost 5lbs from three days of non-stop vomiting. I haven’t been able to hold anything down, including water. I feel like I’m wasting away. I have been admitted to the ER twice for fluids. I’ve been switched back and forth between three different anti-vomiting drugs. They work while I’m in the ER but then don’t work when I get home. I feel so sick and disgusting and lonely. I have to force myself to eat soup. Throwing up something hurts less than throwing up nothing. I’m worried about my teeth falling out or rupturing my throat or breaking a rib.