My LO is 15 weeks today. For the past couple of days her fists have became her BFF and she is drooling more. She has been extremely fussy!!! We can be happy one minute and then the next she is SCREAMING!!! Bloody murder. Nothing calms her down when she starts screaming. At first I though it was gas, but gas drops do not seem to help. She hasn't been eating as good as she normally does either. Do you think she could be teething? I know she is young but what else could it be?