Separation anxiety 9mos old

[Mamma_Mia]

The little girl in my care is displaying sever separation anxiety. Mom says that it's gotten much worse lately to the point where mom can't go pee without a purple faced screaming child. Mom is at her wits end.

Mom is trying to do things to help baby....like having to go out more and even had her first grandparents sleep-over last weekend. all fails but mom is trying to show her it's ok, mom will be back.......BUT issue is mom also "spoils" her. the sound of any whimper, cough, cry mom rushes to her side.

Baby is now super smart and plays us all. she will have a fit if I put her down and she can see me (if I go into another room she will stop after 5/10min) but if I am in eye sight she will not stop. once I pick her up it's MAGIC and the whole time not ONE tear is shed. She also freaks out at everysingle diaper change...I noticed she doesn't like to be laying down. Dad says thats from birth, also she doesn't do tummy time....again freaks out.

I wish I could attach a video for you ladies to see...Its not crying its SCREAMING with pure anger.

PLEASE GIVE ME TIPS ON HOW TO SURVIVE!

I can't hold her all day long nor would I want too...she's 9mos old but 25lbs and a BIG chunk-a-wonka baby. My arms are so sore the next day and my back killed after 2hrs in a sling so that's no longer an option for me.