My LO keeps waking up couple of times a night. All he wants to do is nurse, he doesn't seem hungry but just wants to suck. I give him the paci, but he spits it right out. He never used to do that when I gave him a paci. Even when I do allow him to nurse, he is still super fussy and becomes wide awake. Teething or something else? His front two teeth are coming in. I can actually see them.