What are people with bad morning sickness doing about work? [on]

I’m 6 weeks and experiencing bad morning sickness. 24/7 nausea and some vomiting. My job is quite demanding and I only get 5 paid sick days per year. I’m barely able to work like this and there’s only so much time until my decreased productivity is noticed. Are people taking unpaid sick leave? Are you telling work this early so they understand? Really unsure about what to do.

Edited to add: I have tried otc anti-nausea which didn’t do much. I was prescribed diclectin which I’ve been on a couple days with no relief.