hi, my toddler is 2 n 1/2 n has had a bit of bug, started on sunday lunch time with a little bit of sick, and a very small amount of diarrhea . he was ok monday and tuesday morning (eating bland foods and drinking plenty of fluids) but tuesday afternoon he had more diarrhea, quite alot, one nappy at 4, 5, and 6:45 which was basically water. he slept thru the night with no dirty nappies and got up this morning refused food, only had a little water n has slept all morning with no energy to move. when he did move he wobbled and i had to lie him back down. is this normal for a bug?