If nothing else, for two weeks eat NO FIBER. No fresh fruits or vegetables. No nuts. No Big Mac’s with lettuce, onion bit, whatever. Not even canned fruits and vegetables. No popcorn. If you DO have a blockage or structure somewhere, the fibrous stuff will clump and not pass through. Horrible cramping may result. You are beyond where deliberately taking fiber stool softeners will help.
I am not a doctor. Only personnel experience. Wish you luck.