So the Trikester never spit up when he burped, but this past week he's had more and more spit-up come up when we burp him, and also more that shows up an hour or so after nursing. Now today he's spitting up massive amounts (volume wise) - it's soo much more than before. Ive been following an dairy free diet for a week and a half, and a soy-free diet for five days. He's six weeks old today. What gives? Any ideas on what causes an increase in spitting up?