DD2 is 8 months old and on three meals and three bottles a day and keeps getting constipated. I give her loads of prune and apricot purees and lentils as well as offering plenty of water. Is it worth changing her formula? She has Hipp Follow On. The doctor seemed to think all formula was much the same and just said to keep on doing what I am but the poor thing is miserable and doing lots of little pellets of poo through the day and cries each time which is not good for her. Any suggestions/magic remedies etc?