Yup, been there and done that and you have my sympathy. Whoever came up with the name ‘morning’ sickness should be shot.
Morning sickness and Hyperemesis Gravidarum are not the same thing.
Grazing, as you have discovered, works well for a lot of women. Honestly, I wouldn’t fight it. Your body (and life) will change in many ways and this is probably the least objectionable.
Ginger works for a lot of (most?) women but not all ginger products are the same! Raw pickled ginger (as with sushi) worked best for me followed by Ikea’s ginger biscuits. Everything else just made me feel worse.
I don’t particularly like crisps but had two or three packets a day at the beginning of one pregnancy. Carbs, carbs, carbs! If I could have got hold of mini cheddars back then, I guarantee I would have!
If you have HG, your doctor can prescribe medicine for you. But be warned - the side effects can be worse than the vomiting and nausea. I was only able to take the meds for 5 days before I had to give up.
And another word of warning - morning sickness can damage your teeth. I was told to rinse with mouth wash after every episode but do not brush until an hour afterwards and vomiting softens the enamel and brushing damages soft enamel. Ironically, brushing my teeth was also a morning sickness trigger. 🙄