My daughter, age 11, has complained of headaches , trouble sleeping, and infrequent nosebleeds. Today, she complained of weakness, shakiness, nausea, blurred vision/sudden loss , muffled hearing and pain behind one eye. This all occurred in about 1 minute followed by a headache and nausea. She had a mini episode later in the day and then experienced a nosebleed 8 hours later, followed by another mini episode. She has not started her periods yet. Is this hormones or something more?