did you notice change of smell of her stools , becoming fuel or bad smell more than before?
and is there some mucus (like that coming out of nose when having cold
if there are something of that in the stool , please do stool analysis for her
if nothing like that, andit is just change in texture (may be slight diarrhea
) , it is may be due to teething
, make sure that sh takes fluids plus breast feeding, and you may give her oral rehydration solution for once daily if you notice slight dehydration
I hope she get better soon