ABF - definitely not a fraud, you have been through quite a lot recently!
Lee - thanks :) I'm obviously not worried yet as he's still fairly young and his understanding is massive, I'm always saying 'oh, I didn't know you knew what that was!' :) I just feel a bit sorry for him as he is often clearly trying to say something and we're just not getting it :( He has a couple of phrases, but not in a true sense in that I think he sees them (and says them) as one word, so for example, he will bring over a book and say 'readdis' if he wants you to read him something or 'wassdis?' when he wants you to name something... So he's not actually constructing a sentance out of two words he knows, he's just found a phrase he can say as one word, IYSWIM...