I'm on my 4th HG pregnancy. I'm not sure if you know but there is helpher.org and on Facebook Ayden Rae Foundation both offering support and BTDT mamas.
I honestly am not sure how Made it through. I was on a zofran pump with #2 and did the dissolvables with the last 2 pregnancies. I've spent a lot of time at the er for fluids. I did create a snack drawer for my DD with ziplock baggies she can open so can can get her own snacks. They ate out a lot when I just couldn't cook. I hope you find a combo of meds/ fluids/ vitamins that works for you mama.
Mom raising three wonderful children.