We have the same feeling.. shortness of breath, discomfort in the heart, dizziness, fatigue and sometime theres a lump in my throat.. i visit er doctor, cardiologists and neurologist. All of them said its normal. Ive already done ecg, ct scan of head, blood test. All were normal. Sometimes my bp went up like 150/100 during the time that im scared.. the neuro gave me serc anti dizziness dor 2 weeks and er doctor gave me losartan for 1 month dor bp