Well Tharen is 3 months now, and he has been having less frequent bm's for a while now (maybe a month). Lately he has been acting fussy and gassy alot and having a hard time passing his bm's. They are still liquidy and yellow, look like normal bfp's to me, but he definately is uncomfortable not passing them more often. He is on Zantac for his reflux, and since he started taking it his bm's have gotten more pasty, but still look like what you would think of as normal for a breastfed baby. Then today he had a massive explosive bm (he had a small one yesterday, but this is the first big one in a week). Well as I was changing him I noticed little darker almost greenish lumps that I have never seen before (he has had the yellow seedy and even white lumpy curds in his poo before, but nothing like this). Then in the past few hours he has been passing some really foul smelling gas. I have never smelt anything like it from an exclusively breastfed child. Usually his gas and bm's smell just kind of tangy, not really offensive at all. So could this be from the zantac, or is something going on? Anyone have any experience with this? Ds1 took pepcid for his reflux and it gave him awful constipation, and i guess I am a little worried that is what is happing now.