The toots could be simply because of a change in diet... DD can get quite farty with some things! She makes her daddy proud at times... as long as it didn't bother him, I would assume it's normal.. everyone farts
Babies just make more of a show out of it! LOL!
I would go ahead with the probiotics now. They certainly won't hurt... if he has an upset digestive system, they will start to work within a few days... I was able to stop the Miralax on day 4. I knew that I could reduce the dose because she was pooping a huge number of times in a day and everything was watery... she even pooped milk solids a few times, letting me know that everything was just moving way too quickly... If you are unsure of DS's transit time, feed him something like beets or blueberries - no mistaking those on the way out
Alexandra was on 1 tsp in her first bottle and the same in her last bottle... after 2 days, I cut her back to 1 tsp AM and 1/2 tsp PM... then after another 2 days, I cut it completely out. We are on day 13 with no Miralax at all and still pooping 4-6 times a day. Although, I think I have found that she might be wheat intolerant... not celiac becuase she is fine with small amounts (gerber puffs, cereals etc), a slice of toast makes for a disaster though!