Talk to Chest Respiratory Specialist on Breathlessness

Assalam u alaikum, mera name Babu Raza he mujhe kai saal se balgam ka masala he jis ki wajah se mera chest tight rehta he or breath thik se nahi aata or oxygen ki kami ki waja se chakar aate hein na mein the theek se khana kha sakta hon kuenke khate waqt chest tight rehta he or saans thik se nahi aata aksar muje mouth se sans lena parta he jis ki waja se mouth bhi smell karta he or mera mouth dry dry rehta he or bar bar balgam aati rehti he mein shershah kabari market mein kaam karta hon jahan bohot dust urti he toxic chemicals wali mein khud ko jitna ho sake utna bachata hon par ye masla or bharta ja raha he mein din mein 2 time steam or 2 time green tea peeta hon please help me thank you