My baby is 3 weeks old now and for the past week and a half he has been very fussy non stop, seems like he is either sleeping or crying, he is not awake for more then 5 to 10 minutes without crying. The first week and a half he was a very happy baby and very content so not sure what changed. We are trying probiotic drops to help with possible gas pains but they don't seem to be doing much, so I'm wondering if maybe there is more going on. I'm cutting out all dairy from my diet to see if maybe that's giving him trouble but would really appreciate any advice you guys have !

He also has a dirty diaper at every change, seems to have a lot of gas, get really upset when breastfeeding and then seems to spit up immediately after