YOu might want to ask that question to Andreas Moritz on that forum. I am sure he knows the answer. I am not sure what the answer would be so I should not give an opinion. Yes, there have been times when it hurts to breathe deeply. This is usually when I have recently had a gallbladder attack and need to do a flush to push out stones which are trying to exit but can't without a push. Hope you find the answer. I am curious, too.