Input extremely severe Hyperemesis gravidarum (HG)

I found out I've had HG since 5weeks pg it's been non stop throwing up, I can't keep no food, no liquids I can't even keep water down. It feels like as I get further along the worse it gets. I'm now 8 weeks and 3 days and I've lost 3 pounds. My midwife says the baby is good but is concerned about me becoming dehydrated. I chose a midwife over a OBGYN because I don't feel comfortable with the local hospital or its OBGYN. He's a male and I don't like how he treated my sister during and post delivery. If I were to be admitted he would be the treating Dr. My midwife does work with the hospital but feels that I may need treatment of some kind for the HG.