I Had Thyroid Cancer 2 Years Ago. I In The

I had thyroid cancer 2 years ago. I in the past 8 weeks have been in the hospital twice. the last time they said hospital acquired pneumonia. However, I still feel tired, I still have a deep cough, and the xray still shows something on it in my lungs. I was on 5 different antibiotics while in the hospital for Pneumonia. Should I be concerned?