My 4 year old son has been complaining about his belly ache for the last 3 days. However he's had yellow loose poos for over a week now. He also looks very pale & complaing he's tired (which is not like him at all even if he is tired) I'm just wondering is this normal as I have took him doctors a few months ago for constipation. Could it be related as he's never had such light pops before