Tips for n* at work?

I’m on day 5 of severe nausea no matter what I eat or don’t, no matter what meds I do or don’t take. I don’t know what the problem is but I’ve already missed work so I need to go in today and I need some tips on how to stay sane for the next 7 hours. I haven’t thrown up despite my nausea, but I’m not being dramatic when much of the time I feel like I could at any moment. How do I work through this?