E.H.
I'm sorry, you two have such a hard time, it's also hard to adjust to child that is different from the first one. Separation anxiety is a normal developmental process and usually appears between 6 and 8 months of age. There is a nice article about it at: http://www.keepkidshealthy.com/development/separation_anx.... About the screaming in the carseat,stroller, etc. have you talked with your pediatrician about it, maybe something hurts her while she is restrained or sitting. Friends of mine taking their son to see an Osteopath, because he shows similiar symptoms and has trouble sleeping.