Persistent headaches. Run. kindly help.

I am having persistent headaches since the past 3-4 months. I was going through a lot of stress and mental troubles during the past months, owing to which these headaches developed. I consulted a doctor, who diagnosed me with hypertension (160/90). I was prescribed mild medicines for about a week after which my Blood Pressure readings shot back to normal (130/80). I was prescribed to take care of stress levels and eat healthy without consuming much salt. However the headaches did not subside still ; I was not taking any medication for blood pressure or anything. I started experiencing mild chest pains and shortness of breath symptoms, which my Homeopathic octor diagnosed to be relating to muscular tensions and blocked nose respectively. The headaches were still there. Now I don't have any other symptoms except all day headaches and mild shortness of breath which goes away when I exercise / run. Kindly help.