Since past 3days im suffering from cold nd cough...tody morning when i woke i coughed soo heavily and when i spitted i found blood...after that also i coughd soo many times but der was no blood.. m rly tensd abt this...i work on ships so wen i ws onboard i use to smoke... and i giv a break for 2-3weeks and agn will start smoking now i have completely stopped smoking...i surfed a lot regarding this... but i am not having chest pain or nythg lik dat.. but i wsnt a chain smoker...3-4cigs max...pls advise me wat to do...many thnks