Hi, my son just turned a year old this week and has been drinking whole milk instead of formula for abkut a week now. His bowel movements today and yesterday have been very wierd. Yesterday, it was a huge, solid mass. The largest and most solid to date. Today, it was a bit watery, yellow, stringy, and had a bunch of small pellets like his food had not digested. He has also been fussy for about 4 says now, but his front gums are swollen, so I have assumed it is due to teething. The bowel movements have me concerned. Any idea what could be causing them and if they are normal?