Does one who's on a percription for percocet adjust to the nausea and vomiting after after couple days... they're making me sick?

Hard to know: Some patient do not do well with certain opioids like percocet. Sometimes decreasing the dose can be helpful, other times a change in pain meds is needed. Talk with the health care provider who prescribed the Percocet to get help.

Try something else: Without knowing if you are taking Percocet for an acute problem or chronic problem it may be difficult to advise you. If you are taking it for acute pain, i.E, postop surgery, you may be able to transition to an otc medication as the pain level decreases. If you are on it for a chronic problem, your doc may prescribe another pain med or something to control the nausea and vomiting.