The last 2 days have been tough. McKenna is eating like every hour, and is so fussy. She wont let me put her down…

The last 2 days have been tough. McKenna is eating like every hour, and is so fussy. She wont let me put her down either. Normally she loves her pacifier and that's typically the only way to get her to nap but the last two days shes been nursing to sleep and wont take it at all. Could she be teething? Growth spurt?