Sorry to hear that you're having chest pain and SOB. It does sound like pleurisy, do you get relief when you lean forward? If you do then it's possible that you have pericarditis or a pleural effusion. The EKG will be able to rule the pericarditis or an echo will. The chest x-ray should show if you have an effusion.
I've had all of the above many times over. Matter fact I'm on a medication to keep me from getting pericarditis. I have chronically and so I take something daily to try to avoid that happening. Normally, for me, I end up in the hospital on high dose IV steroids, pain medication, and lots bed rest. However, I've got lung issues anyway and am on oxygen 24/7 at 3 liters. So my docs usually never take a chance at sending me home with one of these.
Please let us know what you find out and I hope you start to feel better really soon.
DX- RA, Lupus, Fibro, LGL Leukemia, Obstructive & Central Sleep Apnea, Pulmonary Hypertension, Bells Palsy, Gastroparsis, Blood Clots, Glaucoma, Chronic Pericarditis & Pleurisy, Severe Anemia. Way to many medications to list.