elo, not sure about brown? i'd assume it was just something you ate? if it had lots of specks in it then i'd be worried.
hugs liz. i'd def look at getting stool testing done, to check for microscopic blood as pp suggested and also check the white blood cell count. (high levels of this can indicated intolerance or allergies to something ingested).
fwiw, ds2 has had all 3 types of those poos. mostly like 1 and 2, but went really green with mucous when i did the cow's milk and soy milk challenges. and the green didnt totally disappear until i did gluten free. tho if you are thinking of going down that route i would start with wheat free rather than gluten free as that leaves a few more food options (like oats) available to you. i've always been meaning to test oats but we usually end up with a bad week, bad meds or some drama whenever i am about to test it so i dont bother rocking the boat anymore! didnt get mucous free until off all hidden dairy and soy for two weeks.
he has started pooping less frequently the last 2 weeks, ie. he has only gone 3 times and used to be good for one a day. he is spitting up loads again the last 2 weeks too and more unsettled at night. driving me nuts actually as i am used to poop inspections to make sure everything is okay on that front iykwim. so far i've cut out dairy, soy, wheat/gluten, peanuts, eggs.
Q for all the mpi mummies tho since you are all here - if it was a food intolerance issue would you expect he would be pooping frequently again? i'm wondering if it is his reflux this time rather than food induced reflux. can eating the wrong food cause just refluxing and no poop issues?