My son is 6.5 months and he must going thru something...he is much more quick to get very upset, angry cries & is difficult to console. Then he’ll be back to his happy, highly self. It’s so odd. Bedtime is suddenly a challenge too. Last night he woke up in the middle of the night & cried for 40+ minutes. No fever, seemingly no gas trouble, and wasn’t hungry. It was the first time he’s done anything like that. He still sleeps next to my side of the bed in his own crib so it’s not like he’s suddenly realizing he’s all alone. Anyone else’s baby going thru some (hopefully) short term personality change?!