For the past few weeks, I have been experiencing severe back pain that gets to the point that I have to take shallow breaths to keep the pain down. I had a chest x-ray last week that is showing "something" on my right lung but they're not sure what it is. While my doctor feels that it is a growth on my lung causing the pain, they are recommending an antibiotic for pneumonia first to rule that out before they do a CT scan. I have had no fever, cough, shortness of breath or any other symptom other than the back pain. The pain is usually better in the morning, but once I've been up for a while gets worse as the day goes on. My question is, could it still be pneumonia without having any of the regular pneumonia symptoms?