My DD is 12, so not actually a teen but this feel "teeny". She started her period a few months ago (on her 12th bday, bless her). She has always been so jolly, so buoyant, and the last week or two she just looks so tired and sad a lot of the time. I keep asking her is she ok, is anything wrong.. she says no, nothing in particular. Im trying to make sure she gets enough sleep, she is having trouble getting to sleep, she looks worn out... I feel quite upset and worried about her even though im telling myself it is probably normal at this age to have some mood changes. I hate to see her like this :(