she needs help starting with her pediatrician. many children of her age have explosive outbursts and there are medications that can help. additionally she could see a child psychiatrist or counselor for behavior therapy. tantrums can occur at any age but by age 7 she certainly should know that she is not in charge of the world and how do deal with conflicts in a more civilized manner. i don't have enough information to comment on her head pain but this should be carefully evaluated by the pediatrician as well including consideration for some imaging studies. rarely brain lesions can surface as personality aberrations so this may need to be ruled out.
my 7 year old daughter has temper tantrums! . my 7 yr old daughter has awful tantrums that have been happening more often. they occur in the mornings before school & other times they happen in the evening. they spark from not wanting to wear a coat to not liking what we have for dinner. she cries screams kicks throws things & even swings at me. they continue for at least 30 minutes and at the end she always cries that her head hurts. i give her some ibuprofen and then she settles down. . this doesnt seem normal to me. any advice would help.