Gemsie Welcome. Sorry you are suffering. You have had great advice from bored already. When reporting the amount of vomiting, do remember that dr's tend to count each heave as a vomit - while I'm assuming you mean that many episodes a day? Hopefully he will prescribe meds, as bored says. Do invest in some kestostix from a chemists to check for the early stages of dehydration. On the liquids and foods that have helped others: flat, full sugar coke, ice lollies the juice of tinned fruit,, ice cubes, soda water, Elderflower Water, Lucozade, Robinsons fruit drinks, sips of chocolate milkshake (maybe soya) fizzy orange, lemonade, for some orange juice and Dr Pepper. Generally very sweet, you will note, and sweet or salty does seem to be the thing that helps. For foods - of a sort - tinned fruit, cheap ice cream,nibbles of crisps and chips, cornflakes, Scotch pankakes, cuppa soup and jelly. Some swear by biscuits.
If the Dr is awkward about meds, try phoning Pregnancy Sickness Support on 024 7638 2020. They will have to phone back, but they will with good advice.
bored That is good! From what I hear from DD, it's a job very hard to do with a bad stomach.