My son just turned 2 months old and he started drooling and chewing his hands. I didn't think too much about it since it seemed normal. Today, he has been VERY fussy and almost inconsolable. I breastfeed and he is only happy while latched. He won't take his naps and gets more upset because he is tired. He also will not go to bed tonight. I'm tired since I cannot lay him down!! Has he already starting teething? If so, what can I do to make him more comfortable?