Thanks for that response. I'm not sure, there's plenty information on google about sesame seeds causing a sore stomach. The castor oil follow up makes sense, I've tried something similar but it's not working - my intestines have swollen up and nothing gets past that, even two tbsps of castor oil.
Not sure what's causing the swelling - I'm taking lots of other herbs, I might be better off laying off everything for a week or so. On the other hand, I am getting things out - this morning there were lots of little orange things that looked like carrots (I searched on this forum and they could be liver flukes).