Completely freaking out :(

The girls just got home from daycare. I know they didn't sleep well last night but usually they just act tired when they get home. Well that's how Reilly is acting but poor Lila is completely freaking out.  
I have tried comforting her, singing to her, letting her shake it off, and even holding her in a bear hug because she started screaming and trying to hit me and her sister.  
Nothing worked until I went and got her special blanket and then put her back in a bear hug. And even now that she is eating she is still shaking some and sniffling  
I hate when she has freak outs. It makes me feel like a bad mommy because I can't help her calm down.