Hello Jim,
Since diet is the cornerstone,I would guess you changed something from your previous
diet where the results were good.How many bowels of brown rice,what kind and amount of vegetables?Are you still taking the same medications? Maybe the stevia or yogurt? Are you also eating some of the previous procedure diet foods? This sudden reversal was caused by some outside physical change.Maybe some over activity.I don't believe the change was small and this is a good opportunity to narrow down a probable cause of your past problems.Since you colon is in a very irritated condition,any negative activity would give a bad responce.sheldon