What do you think I should do about postoperative nausea and vomiting?

Communicate. Let your anesthesia provider know about your nausea and vomiting. There are meds that can be given to help with that. However, there are some patients who will still experience n/v regardless of they are given. Good luck.
Call surgeon. The surgeon or their office can call in a prescription for you to take a medication for nausea, such as phenergan (promethazine). In the mean time, taking a Benadryl (diphenhydramine) may help.

Related Questions

What to do about preventing postoperative nausea and vomiting? Is the nausea preventable?

Avoid surgery. If postoperative nausea and vomiting are to be avoided, don't have surgery... Seriously though mention your concerns to the surgeon and the anesthesiologist - there are many texhniques and drugs to avoid this. Read more...
Depends. If the operation was abdominal, then postoperative nausea and vomiting could be due to a partial or complete obstruction. Usually there is significant pain associated with a mechanical obstruction. A more physiologic obstruction is due to an ileus...The gut is trying to regain its normal function. Call your surgeon if you cannot keep fluids down. Read more...