DD has started to make a very strange growling noise, its accompanied by a sort of straining face but its not a poo. She used to do it rarely, we thought it was when she was tired but this week shes doing it most of the time.
We went for a long walk today and she just kept making this strange noise over and over again. she doesnt seem to be in any distress but somethimes (usually in the evening) it gets much louder and she goes red in the face but it doesnt look to me like pain. She seems to be forcing the sound out of her mouth, DP says she looks like she enjoys making the noise 
It has coincided with her rolling onto her front and her starting to make a lot more noise in general, the HV says its temper but if thats true shes got a temper most of the time!!
Is it just her finding her voice??