I am FTM and My baby is 3.5 months old and he had just started to sleep for long cycles. But suddenly the last three days he wouldn’t settle down for bed time at all. He cries and fusses so much. He isn’t sick or teething. So i guess he must be going through sleep regression. He sleeps in his crib in the same room as us. He usually falls asleep in my shoulder or arms and then i put him in his crib. Sometimes I have to bounce him in my arms. But it used to work since he will fall asleep in 2 minutes but now he takes hours to fall asleep and my hands hurt so much. Please help ! Provide suggestions on how to handle this !