B.G.
they might have reflux problem.. go bring kids to get endocsopy done. About the yeast infection...to use own towels..my sisters kids had to do that.. his body just can't fight off infections like the other kids can.. yeast infection could also spread from anything... take him to doctor.. i use to get infections and i would go to doctor and they would give me diflucan.. but, it only lasted for a short while before i got it again.. So, the problem was that i would be giving to my husband.. due to toilet seats.. baths... etc.. so he would have to take meds also..
also, have him take acidophollous vitamin pills or lots of yogurt.. I would speak to pediatrician first about this if u haven't already..