Could Foul Smelling Stools With Undigested Food Due To Malabsorption In A 17 Month Old?

My 17 month old son had GERD and several food intolerances that we are exploring with the help of a naturopath (I m in Canada, so we ve been on a waiting list to see a pediatrician) - we believe Dairy is a major factor, his naturopath also suggested we pull all refined sugar out of his diet and only sweeten his food with actual fruit; additionally we see ongoing stomach pain (twisting torso, screaming in short bursts, still cannot lay flat on his back, is only calmed in a warm bath or when I rub his tummy) on a regular basis. While the one test we ve done thus far doesn t indicate the following foods, we suspect oats, eggs, nuts are also still contributors to his ongoing discomfort. Joey is not gaining in weight or length significantly - certainly not since I weaned him at 13 months old. He still looks small in the same pajamas he wore at 8 months old, and he still weighs only around 20lbs. I finally got my husband to look at his poop last night and he s extremely stressed as Joey (my son) poops 4-5 times per day some days, the stools are always very foul smelling, they always contain these funny white granules and large amounts of undigested food. Is it possible we re not looking in the right direction? Our physicians seem to follow our lead in exploring what s bothering my son, so no testing has been done on him to my ongoing dismay. Is it possible there s some sort of malabsorption issue and not all these allergies/intolerances?