DUCK11--Sorry, I'm just seeing this now. I didn't feel nauseous nor was I vomiting (at lease not before my last big surgery when I wasn't able to go the bathroom hardly at all). I definitely felt malaise only because I knew something really bad was happening. When my surgeon opened me up she said she was "humbled" as she had never seen someones bowels so distended. I hadn't felt any "urge" to use the bathroom or any cramping sensations but when I'd use the bathroom almost nothing would come out. It was super stressful. Have you tried the catheter yet? It would be worth a try. If you get a lot of output then you know it will be the solution to your problem. So much better than surgery!