Yes, I did have a chest x-ray the first time I got plurisy. The next couple times I got it, my doctor did not do a chest x-ray. Once you have had plurisy, you usually know when you have it again. It is a type of pain one remembers. My doctor could hear the grinding sound when he listened to my chest and side. Each time I have had it, I have been given antibiotics as well as an anti-inflammatory drug. Celebrex is good, but since you are not feeling better you should check back with your doctor. You probably do need an antibiotic. I hope you feel better soon!!