I'm not overly concerned, more curious. DD (age 3.5) is becoming increasingly scared of groups of people (even those she knows reasonably well) or birthday parties. Tonight she told me she didn't want to go to her cousins birthday party, which she has been looking forward to for weeks, because she said there would be too many people there. Last week at a small gathering of mums and other toddlers she kept saying too many people mummy, want to go home.
She has been attending nursery for the last 18 months (which she loves) and in many ways is a very confident child. Is it likely to be just a phase do you think?