So Aviannah was sleeping great through the night since she was about 2.5 weeks. She slept for 5…

So Aviannah was sleeping great through the night since she was about 2.5 weeks. She slept for 5 hours stretches. She's now 6 weeks old and the past couple nights have been crazy. She wants to stay up all night, eat, fussing occasionally, coo, smile, and stare at everything. Is this temporary? maybe a growth spurt? Or do you think she got her days and nights mixed up? Just weird. Because about a week ago she did the same thing for a couple days then started sleeping through the night again.