I would think that 6yrs is to young for Irratable Bowel or IBS! I have this but it is generally caused by a more serious illnesses deep down, like long term bowel disturbances and non balance. If she is on a good diet it probably isn't. I am going to start my nearly 6yr old on the inliven just to help with any balances that may be out and general health before anything takes hold. Prevention is better than cure!!

I hope all goes well with your daughter!!