My son cut his first two teeth (bottom) last week. The week leading up to that he was hell and stayed up ALLLLL night every night crying. I didn't realize it was from teething until he bit my finger a few days later. It seemed to last a few more days after that and I kept up with tylenol. Then once they really came through he seemed much better. But now he is back to crying all night and refusing to eat things I offer him except milk and purees. He seems super uncomfortable. Is it possible it's more teeth or is it just residual pain from the first two?