My mate's 3 yr had incredible vocabulary from a v young age. This last month she's become hardly understandable. My mate took her to the doctors yesterday and asked if it could be something pressing on her brain to which he said he couldn't be certain and is rushing her through to see a consultant. I'm terrified so I can't imagine how they're feeling. The GP mentioned adenoids but I can't see how this would totally change her speech? Has anyone else heard of this?