Re: prevacid and infants
I had mine on Prevacid too and never had those issues. If its an allergy you may want to supplement with similac alimentum-- it's especially for sensitive stomachs and might help/-however you may not want to introduce a bottle or formula if you are EBF. I am not a dr but think that an allergy would also be accompanied by spitting up and you said he seems to be better.
Does he go to day care? It could be possible he picked up a parasite--i would doubt this but you never know. Excessive gas/poo issues is a symptom of giardia but you would prob notice him pooing a lot more then usual. I don't like its a culprit but just wanted to throw it out there