Hi!! This is not concerning me, it s about my adoptive father. He is 46 years old, works out every day, he s a martial artist and is in good shape. He has been complaining about dizziness over the past four months I believe, he says he gets dizzy spells that get so bad sometimes he can t move at all or else he would fall over. And recently adding to the dizziness he says he has a tightness in his chest. No pain though! He says it feels more like pressure. He has been to a cardiologist and a neurologist and both ran many tests which came out showing nothing wrong. A doctor thought it could be his blood pressure and put him on blood pressure medication but he says that it made him feel worse so he stopped taking it. Everything has been ruled out, does anyone have an idea of what it might be?!?! I m very worried about him. Thanks!