Had hg with dc1, and then just normal morning sickness/food aversions with dc2&3
Things I could sometimes tolerate:
fruit (mainly watermelon, melon, grapes, strawberries, raspberries and nectarines) all have to be ice cold from the fridge,
plain pasta (sometimes with a tiny bit of butter and grated cheese),
plain rice or with a tiny bit of mayo stirred in,
jacket potato or mash with cheese,
dry crackers/melba toast (sometimes with a tiny bit of cream cheese),
ice lollies, ice cold heavily diluted squash, cheap chocolate ice cream (nothing fancy!)
also agree with pp that randomly banana milkshake (only the yazoo brand) was a life saver!
ready salted Pringles