Gets something between an asthma&epilepsy fits and no one can tell us what is wrong

[Jessievr]

My daughter is 17 years old and she gone through test after test, in and out of hospital and no one can tell me what is wrong. She gets something between an asthma and a epilepsy fit sometimes daily sometimes weekly. She cannot go to the shops with me anymore she gets tired quickly and then she gets a headache and struggles to breath, she then sometimes high per vincula's (I think that is how you spell it). after the fit she sleeps as she is to tired to do anything. They have done tests on her lungs and heart but say they cannot find anything.