I am extremely nervous about getting duramorph in the spinal afterwards. I have heard a broad range of opinions on it. I know that it doesn't work at all for 10% of the population, making it difficult for doctors to know if you need to have something else entirely or if it just haven't "kicked in" yet since many people also experience a delay between when the spinal stops relieving pain and the duramorph kicks in. I also heard it can make you itch like crazy and/or experience nausea and vomiting. The last thing I want is to vomit after having abdominal surgery. What did people who had the duramorph experience versus those who didn't?