I'm no newbie to painkillers. I've had a double lumbar fusion, which makes the pain of labor a walk in the park. When I've had pain, I've gone to pain clinic, which many of you know, gets you nowhere. I live in the Twin Cities, so I've seen a lot. The clinic I'm going to now is weird, ALL the docs prescribe freely. They offered me fentanyl. I'm worried about liver or kidney damage, so I asked if I could be prescribed something w/o acetaminophen. They gave me a ton on percocet w/o it. Then a ton of Ms contin. Thing is, after I had about 5 15mgs of Ms contin, I felt terrible. Fatigue, vomiting, diarrhea, pain under right ribcage Why would the one drug that doesn't have acetaminophen do that? It's exactly why I went on it? Was it the coincidental flu?