Hi all, just over a week ago I underwent surgery and was on a lot of morphine for about 3 days, followed by some oxycodone... On the first night of being on morphine I vomited and that was the only time I did. Would I have a moderate tolerance to opiates by now? I'm just wondering because I'm planning on taking around 30mg of oxycodone (5mg pills) tonight, but I'm not sure if should expect any nausea or vomiting, which isn't what I want having broken ribs.