dd just had second mmr, chickenpox, and polio,dipth etc boosters (for some reason i let the peadiatrician convince me to have them all done at once) she has no rash or fever etc b ut has a bout of raging diarrhea (can't spell that word) is this a common side effect of vaccines or does she have a bug etc (i must go out and buy some chilcare books as i left mine in uk and now use this site for all my answers)