My daughter whos 14 has started having dizzy spells. she can "feel" them coming on & will lay down? these have just started since the beginning of the year. she said sometimes are worse than others & sometimes she will have a headache with the spells. im sure there are many possible causes but what do u think should be done on a visit to the doctor to have it checked out? what would be some of the things they will check her for first?