My baby is three weeks old, only breastfed and for the last week shes been pretty fussy. I figured out its most likely colic. So Ive been using Gripe water and doing leg stretchies with her and massaging her tummy and that seems to have helped a little. Also added a probiotic. The last two days shes been spitting up quite a bit. Usually after she eats and Im burping her but I just laid her down after feeding and burping and she spit up 4 times. The last time was kind of alot and it did have a very subtle yellow tinge to it. She seems fine when she spits up and its not forceful. She didnt even wake up when she was spitting up. Anyone experienced this and should we be concerned? Going to call the pediatrician tomorrow but Im not sure if Ill be able to get an appointment with them or not.