DS1 is 2and a half and we've noticed over the past couple of days that he's really started to struggle with a couple of his words. His speech has been pretty normal 'toddlerese' up till now. But he seems to suddenly be really struggling with the word 'it's' (coming out like this - 'iiiiiiiiiiiiiiii, iiiiiiiiiit's - sometimes taking up to 30 secs to get the word out), and same with 'I', and also sometimes with 'W's. Should we be worried. It's not everytime he uses these words but def more times than not over the past few days. He doesn't seem too distressed by this but obv we are concerned.