Extreme nausea/vomiting

Is/has anyone experienced a terrible nausea and vomiting in first trimester?? Currently 6w 3D and it’s been going strong for a week already. Can’t even go to work... having trouble keeping anything down including water.

I do feel better if I take Unisom with vitamin b6 but I dont think I should be taking that everyday??

Please help!

I’ve tried eating crackers before Getting out of bed, small meals/snacks every 2-3 hours, smelling lemon, ginger tea and ginger candies, and nothing is helping 😫😩

I am so miserable