DD is 15 months old and generally a happy lively child. A while ago she started picking up stray hairs and gnawing on them or pulling them out of my hair brush if she got hold of it.
Lately she has started pulling hair out of her own head and eating it and making a gnawing sound as she does it.
She tends to do this if she is a bit over stimulated, overtired or anxious (e.g. often at bedtime) and finds it comforting.
I'm worried that it is a sign of stress and not sure how to prevent it happening. Anyone had this experience and any ideas how to encourage her to stop?