Well, my internal hemis give me more pain and blood than my UC ever has. I haven't been in a flare in well over a year, but for the past few months I have tried everything I know of to help my hemis. I don't have anything visable to the eye- just internal. They have left blood in the stool as well as the paper. My colonoscopy in December confirmed this wasn't my UC, just internal hemis, so I guess it is different for everyone. But, hemis usually make me feel extreme pressure and a burning pain.