EtheltheGoose Welcome. That is extraordinary advice.
The only good thing about it is, that ginger wasn't mentioned.
I hope that the doctor, when you phone and assure him/her that it's not working, does accept that you need meds. Unfortunately, it is likely that you will get it in subsequent pregnancies, though some on her have escaped. Most have learnt how to get early effective meds and how to get a support network and that makes things less alarming if they suffer a second time. Here is my normal spiel which may be of use. Most sufferers find that they improve a lot at some point between weeks 14 and 20. Even those who are unlucky enough to suffer throughout generally are not as ill later on as they are in the first part. A good anti acid can make a surprising difference to the sickness. Kesostix are worth buying online or from a chemists, as while they aren't they best test of dehydration, hospitals take them seriously. Some drinks that have helped others: full sugar flat coke, ice lollies, the juice of tinned fruit, Lucozade, apple juice, Ribina, Dr Pepper, soda water, Elderflower water, tonic water, ice cubes, Iron Bru, lemonade, lemon squash, orange squash, orange juice (if not too acid), fizzy orange, 7Up, isotonic drinks, sips of chocolate milkshake (maybe soya), fizzy water, apple juice, and Robinson's fruit drinks. I'll add Beaopo's Rubicon sparkling mango drink. Foods of a sort include tinned fruit, cuppa soup, nibbles of crisps and chips, cheap ice cream, Scotch pancakes, bagels, slices of melon and mango, grated cheese, baked potatoes, grated cheese, bagels and biscuits. Someone recommended a wonderful drink, recently, which I said I would add to the list and - stupid Mother Hen! - I've lost the reference!
PetiteQuark I am sorry that you are suffering badly in the third tri. That is so dismal. It is disappointing that the Omprazole doesn't help. Has the doctor added other meds iike Cyclizine in the past? It is miserable to have 3+ketones. I hope you get better without having to be admitted, but at least that will help.
PhotoMum4 You have already had excellent suggestions. Does the juice of tinned fruit ever help with rehydration? A lot of sufferers find an anti acid invaluable.
SweetpeaorMarigold I am sorry about your miscarriage. Don't worry about missing the kids' strawberry toothpaste advice- I don't expect sufferers from Hyperemesis to be in a mood to read long introductory posts usually...
Pumpertrumper
You are so right. Very tiresome.
Seeker2020 That was one good thing about lockdown, anyway...
Great advice from ChubbyMumFromSkye, Semele, Seeker Anya212 and everyone.