LO is 17 months and he has been STTN for a long time with no real issues when we put him down in his crib. A few nights ago though he started crying hysterically when we leave him in his crib. It can take over 30 minutes for him to settle down. He also wakes up every hour or two and cries. Sometimes it's a one time cry and other times he cries a lot.
He doesn't have a fever but has been more fussy/sensitive in general. Could it be an ear infection? Could it be molars (his gum on one side is swollen)? Could it just be new sleeping problems/the joy of toddlerhood? Should we call the doctor? If you've run into something similar how did you handle it?