I've been problem of palpitation,uneven heart-beating,dizziness,tired of quickly,feeling weak after a li'l work even and unwillingness to work and it's a problem since last 12 years. I consulted 5/6 times with different doctors and done ecg and echo all the time,but result is there is neither problem in heart nor i've BP.And all my blood report is normal .Please Help me. I want to know at least what kind of disease i have.