My DS is 2.10 and for the past week has had diarrhoea, needing his nappy changed up to 6 times a day, but no sickness, fever etc - otherwise completely himself and eating and drinking normally (or as normally as a fusspot toddler does). Given the length of time it's taking to stop and unsure if it is a stomach bug or the infamous 'toddler diarrhoea', I took him to the doctor, who basically said that to allow the gut to recover from a bug he would need to have 'no solids for 48 hours max'. DS was attempting to pull the surgery apart so I was a bit harrassed and didn't really question this too closely at the time but subsequently thought that I would struggle not to eat at all for a 48hr stretch unless I was very sick, so how could we do this to DS? He doesn't understand at all and, while I had no problem last night putting him to bed without dinner, he had a meltdown this morning until he got his usual banana. 
It really doesn't sound like practical advice to me but AIBU?