I don't think I'm an overly stressy mum, but I have a nagging instinct that there is something not quite right with my 15 month old DD. Apart from when she's ill (she's had half a dozen sick bugs since she started nursery in November) she has an almost insatiable appetite. She'll eat a huge breakfast with us (a big bowl of ready brek then a piece of toast) and still eat a full breakfast at nursery, a big lunch and tea at nursery (they usually have to give her seconds), and then more often than not another tea/supper when she gets home.
She's about 9th centile in weight - still has really skinny little arms and legs, but a massive bloated belly. She almost looks like a famine victim.
Oh yes, she was getting fairly regular diarrhea (sp?) but someone suggested switching from weetabix to ready brek. FWIW I am NOT a believer in food intolerances generally, as I usually see "intolerances" as fussy eating, but that does seem to have stopped the runny poos.
Any ideas? Am I worrying unecessarily? If I go to the health visitor or doctor, will I get fobbed off? 
Thank you in advance...
x