What happened to my baby?? 21 month sleep issues and tantrums

Meredith

Anyone else blink their eyes and find their child went from sweetheart to tantrum throwing terror? It came on so quick! He was a great sleeper, great demeanor and this week he’s suddenly a different child. Fighting bedtime, full on tantrums in the morning and before bed, not eating well. Is this just a phase?? Ugh.