Hyperemesis diagnosis... Any tips??

Emily • Mrs 3/21/15 Mama 3/31/16 Due with #2 May 2019
Have been in the ER 2 times so far for fluids, just got home from being admitted for being severely dehydrated... Lost 20 pounds since pre-pregnancy weight. 17 1/2 weeks. Any tips?? Experiences?? I'm just ready for March so I can have my baby... pregnancy has not been easy.