### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
my granddaugher is 12 yrs old and has her monthly cycle. It is literally running the household, my sone is a single father, and since my granddaughter has started her cycle, my son is going crazy a week before she starts talking back, not listening, yelling at him, in general making his life horrible, he says it s her hormones, that s what his ex-wife tells him. I have talked with other mothers and none of them have had this extreme problem. I think it is an excuse to get away with what ever attitude she wants. I worry about my sone (single dad) because heart attacks have run in my family, he is under constant stress due to her problem . I have had 4 strokes, lost my 2 brothers, sister, mother and father all from heart problems. Is this a normal thing for 12 year olds when they have their cycle. I have talked to a lot of others who have had girls in my family and they never went through this! Could it all be mental or put on, or could she get help! It s really ruining my sons and granddaughters lives. He will do anything for her, but right now it s my sone I m worried about he is 50. A professional opinion would be of great help. Thank you so much.

### output:

HAI I'm Chat Doctor. Hormonal changes do happen in adolescence, especially during menstrual cycle. Mood swings can happen. But this can be over come by take care of her and by proper counselling to her. As the child is not with her mother such problems will magnify. In fact she might be stressed out because of that reason. Ok now coming to overcome this problem, first she need to love and care not only from father but also from her mother.Otherwise, any female to whom she can share her personal feelings. Let it be an aunt or a good friend or friends mother. Let her be free to clear her queries to a responsible and caring female. Once she adapts to it and come to know things and understand about the love her dad has for her, she will be fine. This is the time when a girl need only good company. Take care.