Hi ikenberry,
I've had quite a few hernias...6 I think (some small and some really big, all fixed with mesh repair)...I can't say that I had a particular pain...more like I had a diffuse pain in a region like 'the right side' or midline but I couldn't pinpoint it.
They never found them using traditional methods...ultrasound, x-ray or scans...either, I had a specific symptom (peristomal hernia that effected the stoma directly which was its own diagnosis) or they felt them through palpation or found them though exploritory surgery (laporoscopy).
They are not easy to diagnose...usually an internist can help with this.
As for ulcers I don't know much about them other than stomach or pouch ulcers...
Not sure what to tell you...if the pain lasts a long time, causes you problems with walking, sitting, movements like carrying things etc you may want to insist that they do something about it but if it doesn't cause any major problems you may be able to leave it alone.
Sharon