I just found my 10 year old hiding in her wardrobe. She wouldn't tell me why but it seems to have been because I wanted her to go for a shower. I've found her in there before in tears over various things - not wanting to go to school, not being able to work something out in her homework, feeling crowded by her siblings etc. She has frequent headaches (no medical explanation), occasional migraines since the age of 6, and tends to melt down under pressure at school. She won't talk about what worries her. Her teacher is aware and very supportive. She's a quiet kid and generally reluctant to put herself forward, unless she's performing music, when she's all confidence and happy to be on stage.
I worry that this is going to get worse with puberty. I'm reluctant to take her to the GP as she's unlikely to talk and I don't want her feeling that there's something wrong with her. What can I do to help her?