Hyperemesis... unisom and b6?

Hi! I had severe Hyperemesis Gravidarum in my first pregnancy 2 years ago to the point where I had to have a Zofran pump through my stomach 24/7. I’m trying my best to avoid that with this pregnancy. I don’t see my doc until Thursday, but does anyone have any experience with combining Unisom (I think it’s 1/2 a Unisom) and b6? Can someone recommend the correct dosage of both and if it has worked? I’ve lost 9 pounds since finding out I was pregnant, kidneys hurt, can’t drink or eat anything without it coming directly back up. I’m not even 7 weeks yet. Any help is greatly appreciated.

P.S.- No, ginger doesn’t work :/