B6 & nausea

Has anyone tried B6 alone for nausea? If so, did it work? I’ve been taking it 3x / day and then half a Unisom at night, but find it so hard to get up in the morning because I’m even more exhausted than I already am without the Unisom. It’s definitely helping the nausea (at least it seems to be), but was wondering if b6 would help without the Unisom?