My ds is 15months old. He is starting to acquire words and signs more and more. But I also noticed, that when I don't keep the signs up and don't keep reinforcing his words, he looses them again. I feel he still does understand, but he won't say them anymore. I feel a couple weeks back he knew more signs and said more things than he does right now. Is that normal development? Do I need to worry,i.e. do I need to look for help?
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He never was a very verbal/talkative baby, I don't think he is very behind, but he's definetely not advanced.





