Welcome to Troika and roitavxsucks.
Troika Cyclizine can help some, others need something stronger. Don't hesitate to ask for something stronger if it doesn't work. I am so sorry about mmc's. Even one is distressing. What was your name before? I was given Domperidone for the vomiting with migraines years ago, not for the Hyperemesis before, but did to be honest think it needed a strong anti acid, for me anyway, as that got worse for me. Definitely, an an anti acid helps, like ranitidine or omprazole.
rotavxsucks I am glad the thread helped last time. Some find metocloprimiade very useful. As above, an anti acid may help a lot.
Never worry about tmi on here. I remember that escaping from all orifices, it is grim. 
On some drinks that may help, flat full sugar coke, ice lollies, the juice of tinned fruit, Lucoazade as rota has said, Dr Pepper, soda water, Elderflower water, ice cubes, sips of chocolate milkshake (maybe soya), lemonade, fizzy orange, orange juice (if not too acid) Robinson's fruit drinks and fizzy water. Some foods of a sort, nibbles of crisps and chips, cheap ice cream, cuppa soup, baked potatoes, scotch pancakes, slices of melon and mango and tinned fruit; jelly too.
TwoDrifters Many try spitting into a bowl - and never worry about tmi. Some suck sweets, which help with the dreadful taste, but some say that increases the spit. Don't feel you are a bad mother; from all I have seen on these threads, your LO will forget all about this period of comparative neglect in no time, and a sibling is a priceless gift. I wish I had gone for it again, believe me.
LaBelle12 Thank you for your lovely message. I am so glad that you are feeling a lot better. Even the unlucky ones who suffer throughout, almost never feel as bad later on as in the early weeks, and most find things improve between 16 and 21 weeks.
Waves to Foodylicious Hotchocolate and everyone. Great advice from everyone.
I am sorry for anyone rudely overlooked. Back tomorrow (they are about to kick me off the pc in the library now).