No I don't have nausea after eating, but I did when I had c.difficile, a bacterial infection. I think you should ask your GI to order stool cultures to rule out any infections. Also, nausea can come from gastroparesis, meaning slow stomach emptying. There is a barium swallow test that you can do to check for that and medication that can help increase stomach emptying time. I used Domperidone a drug prescribed in Canada but not the US, that was helpful. For me the gastroparesis was caused by chronic c.difficile and once we fixed that then the gastroparesis also went away. That's not the case for everyone. You also might have reflux causing the nausea. There are probably other causes I'm not thinking of. But your doc shouldn't chalk up your pain to IBS without checking out other causes first.
59 yr. old female, diagnosed with Crohn's in terminal ileum Sept-Oct. 2007. Dx. with c.difficile 1/12, 10/14, 11/15, 1/16. Fecal transplant on 2/24/16, and so far, no more c.diff!
5/20/14: Ileo-colic resection surgery after stricturing and partial bowel obstruction.
Not currently on any Crohn's meds and in remission, but struggling with bad IBS.