Cough in chest. Or try cough syrup.

From last more than a year I m feeling like cough stuck in chest after breathing including breathlessness ( very rare) when I cough i feel temporary relief but again in seconds I feel same no matter how much I cough nothing comes out sometime when I eat I get cough might be because of certain food .. During first wave I did covid test which came negative in fortis mulund the doctor told me to get xray & some blood test  if covid result came negative.. As doctor was not available I went to another doctor and showed report to him but he said everything is good in report.. After that due to work I was not able to get the treatment.. So now question is what it could be should I contact a chest specialist or try cough syrup.. Thankyou