Yes, I have nausea during bad episode and on a frequent basis. I just try to ride it through. Sometime your meds will cause nausea. Try a few dry crackers with gingerale. This helps sometime. Hope you feel better soon!
Twintam, you may want to check out dysautonomias since nausea can be a symptom, especially since you identify it as coming on strong with a bad episode which a trigger of dsyautonomia can cause too. I've posted about them before, as have others.