I don't know. I am going thru a similar situation of feeling like my colon is blocked. How to clear them out I really don't know. I think digestive enzymes would help loosen the masses up. Caster oil brought on the stomach pains for me. I believe it is die off and them getting stuck. I, like you am having a hard time clearing them. I just took cascara sagrada and some other herbs to help move my bowels. Caster oil may not be a good thing since you are backed up as it is and I think it would make it worse. Diatomaceous earth might help. I have always been able to get mild relieve my pushing on the masses in my abdomen. Maybe you could try other laxatives but we are talking about a mechanical blockage. Cascara Sagrada is supposed to keep the bowels moving. Maybe that, digestive enzymes and pushing on the areas where it isn't moving to help it along. I don't know. I am drawing a blank too.