My baby suddenly won't let anyone but her father or me pick her up. Is this normal?
The timing of stranger anxiety is related to the developing personality of your baby. As her brains develops, she can discern the people and things around her. She will be "comfortable" with the familiarher parents, blankie, bed, etc. When she is separated from the familiar, it is distressing, hence, separation anxiety. As she continues to grow and develop, your toddler will understand the permanency of mom, dad, and familiar settings and things, and the anxiety will abate.