DD is nearly 6 and is becoming more and more unhappy when in party/disco situations. She likes the idea of going but once there becomes very clingy and any suggestion of joining in games etc is met with hysterical crying. Then any suggestions that as she's not enjoying herself we should go home is met with even louder hysterical crying. Explanations range from it's too loud, too noisy, there's kids there she doesn't know, so and so wasn't there so she couldn't show her her break dancing. 
She doesn't have any problems making friends at school and gets loads of invites but am concerned that this will affect her socially if it goes on too long. Just had to tell another mum she wasn't going to a friend's party today as she getting anxious this morning.
Any ideas? I'm worried if she stops going completely it will become this big monster that she'll never get over but I don't want to keep putting her in situations that make her unhappy. 