My dd (6 months) has got the runs. 
I was just about to change formula from SMA to Hipp as she was getting constipated. However yesterday in using all my supply of SMA up I think one of the cartons was off
. I thought it smelt funny, was completely in date, DH said I was being silly, so I gave it to her. Ever since she has had the runs. (she has also tried lots of new foods over past few days so could have been that too).
She is completely fine in herself but I have changed about 8 dirty nappies today. I noticed what she had for lunch was in her nappy by about 5pm
. She was very hungry this evening so I gave her some porridge before her last bottle.
However, she is in the process of being weaned, she has 2 meals a day, porridge at breakfast and a mixture of purees and finger food at lunchtime with some yoghurt after. She is getting her 20oz of milk.
The question is do I just continue as we are and still change her milk in a day or 2?, or keep her on just SMA for a few days with no solids, so that there is nothing that is going to make her worse. (am finishing off the tin of SMA - have one days worth left).