i was 15 when my father died of tb/asthama .he was separated from me and my mom when i was around 6, i visit him occasionally. i remember whenever i visit him i found him laying all alone on floor , coughing and praising god for healing. he became very skinny , i can see his bones literaly. thou he was so healthy before that disease. i was very young to understand situation and i blame myself that i couldn't saved him thou i could.as i was growing older i was told that he was suffered from tb (doctors were not sure about). so now , currently i am 25 years old. and theres this persistent cough ( repeats everytime , mostly in cold season) which is getting worst and worst.cousgh is random , sometimes dry sometime with pure white and sometime thick transparent mucus. i have seen couple of doctors , they jst prescribe me to take diffrent syrups and medicine.now those even dont work!! past year i got my chest xray and blood test , which all comes normal.3 months ago i had this very sharp pain in centre of my chest and diagnosed with sinus tachycardia and anxiety. currently i am having on going cough from last 4 weeks . i get worse in morning , when i eat something heavy like dinner or lunch , when i go outside on two wheeler and some random times. please tell or suggest me what to do .i hope helpful answer from you side thanks alot in advance .