My daught 12 yrs old feels frequently fatigue and headache.she collapsed when swimming, had diificulti to breath.what is it and what specialist to see?

Be seen today: If the collapse is new symptom and did not require immediate visit to er and she is better now have her seen by her provider today. There are definitely more benign reasons a teenager, especially a female, may feel fatigued and have episodes of fainting but they still need to be evaluated to prove this is the cause as it could be something more serious. Start wit primary.