I recently visted my cardiologist and she said, My Ekg and Echo were normal but I am still experiencing symptoms such as headaches, dizziness, shortness of breath, shoulder and neck pain, I also experience nausea. I have chest pain on my left and my right side and it mostly happens when I lay down. I kind of black-out when I stand up. I get tried extremely fast when I play sports. I dont sleep well and I kind of had a loss of appetite. Could it be a neurological problem or something else like, Is it all in my head? Or do I have to visit at psychologist?