4.7 cm and a 4.2 ascending aortic aneurysm

Hello, I am 55 year old male, never smoked. My last scan showed slow growth. I was at 4.7 on aortic root and another on ascending aorta at 4.2 when measured last September. A few days ago, I had a new, hard to describe chest pain, kind of a dull ache. When i got up next day it was gone. Yesterday afternoon, the same pain came back, but worse and included shortness of breath. At ER, they ran EKG and Troponin tests and ordered CTA of chest. The CTA tech said it was to check for blood clot in lungs. I asked him if it would see my aneurysms and he said it should. A few hours later, the ER DR told me they didn't see the aneurysms and they might have "cleared up" and to follow up with cardiologist. Earliest available is tuesday morning, this being holiday weekend and all. I don't really know what to ask or say here, but has anyone else had this experience or symptoms? The pain is best described as a straight line down chest, just left of sternum. Last night it made it into my back, kind of straight through. BP was good, EKG good.