Hi! Thank you for your question and welcome to our site! Don t be worried. This is a normal reaction to prune juice - a natural laxative used to relieve constipation. It contains sorbitol and fiber that the body finds difficult to digest, allowing for softer stools to pass. Sorbitol also attracts gut bacteria which, in turn, produce gas that can cause pain and bloating. The pain and bloating will subside, as you mentioned, once you pass gas or have movements. I would suggest that you lay off the prune juice for now. Try eating/drinking milk-like probiotics like yoghurt and others to help normalize the balance of your gut bacteria again. I wish you well! Take care! Dr. Galera