I Have Been Ill For Many Years With Many Conditions..recently,

I have been ill for many years with many conditions..recently, however, i coughed up blood instead of phlegm for nearly 2 days . i went to a local urgent care in my area and they insisted i go to the ER FOR FURTHER EVALUATION SO I DID. THEY TOOK ONE X RAY OF MY CHEST AND SAID I HAD A NODULE IN MY LUNG PROBABLY FROM AN OLD PNEUMONIA..THE PROBLEM IS THAT , considering all the factors, I NEVER HAD A PNEUMONIA AND I CANNOT WAIT TO SEE A PULMONOLOGIST TO GET SOME IDEAS...PLEASE TELL ME WHAT I SHOULD PREPARE FOR.