hi i am 38 year old female a single mother,i start feeling lightheadness and dizziness six moths back, my neck and upper part of head , i feel sansation there.. and after that my blood pressure goes down like anything, then short of breath, i smoke too. and my work need lots of mind and physical activity. whenever i try to sleep, the mitute i close my eyes my heart start pounding.. it is now contineu from 15th may 2011, even today.. i am taking homeopathy medicines, but i am not sure what is the problem with me. i have done my cardiac checkup too everything is normal, doc thinks it can be ulcer.. i am very worried about my sickness, it was not regular earlier but now it is not going.. i dont know what to do pls help..