Nausea meds and endless hunger.

I am currently 7w+3d and it’s my second baby and I now have a new OB, my last one said certain nausea meds were okay in the first trimester. My second one, the one I have this time, she said that she won’t prescribe any nausea meds in the first trimester besides unisom and b6 however that doesn’t work for me at all. I stay super sick a lot and I tried cracker, gingerale, ginger lemon drops, the bands, etc. Nothing works. Anybody have any idea of what I could use or take for this pregnancy? I also have another problem where I stay hunger and I eat very little and get so full but stay starving. Please help with ideas on how to fix thisss. Cause I am starving and l want fooood but I stay full.