In despair here as embarking on 4th night of DD nightly problem. At supper time she complains of very bad tummy ache, which makes her cry, bath doesn't really help so giving paracetamol as calpol makes her sick. Gets in a real state, very sore, agitated. I thought early onset of periods as has some pubic and under arm hair etc but it is much better in daytime. Morning and evening appetite zero. Any tips please as at wits end. I sit with her til she goes to sleep. She is normally v healthy, v good sleeper, takes bags of exercise - though not so much this last week.