The pain on the rib is from the stones, I had it even before I started flushing and it reappears from time to time.
About constipation, what are you even eating. STOP eating dead bodies, it is a source of putrifaction and you are forcing your liven even more when you have to detox an unclean product. It is full of toxins and substances that come out naturally when dead bodies are rotting and it will give you constipation and parasytes.
Change to fruits, lots of fruits and greens, good unrefined carbs and do cardio. If you cannot cardio at least do big walking most of the days. Tell me how it went after these changes.