I used to be so good at research, I feel embarrassed not to be able to find an answer to this myself. But can anyone tell me (briefly) home much of a concern is chest pain? Docs, when told of it, just listened to my heart w/stethoscope and pronounced it fine. But the pain is getting more frequent and intense. It's always worse after exertion, too. And I've heard about heart problems being common with ME. What signs should I watch for? What tests should I request?