I had terrible all day sickness in the beginning (I'm now 28 weeks and still have it sometimes) but I used sea bands to relieve it. They honestly worked wonders for me. I got mine at cvs. Also peppermints worked for me.
They prescribed those to me but haven't gotten them yet. They also gave me Zofran to take and some times it helps and others it don't. Maybe the b6 will help though.
My doc told me try half a tab of unisom and half tab vitamin b6.. worked for awhile but mine was terrible so I had to get prescribed diclegis because I couldnt eat anything.