I have three kinds of chest pain. Big ones happen every couple of months and are your standard crushing, radiating, can't breathe curl up in a ball episodes. They last five minutes tops. ECG etc negative. Nitro stops them cold. The second kind of pain happens every night while I'm resting and feels like pressure and make it hard to breathe but I still can. Sweats, blurry vision and occasionally radiating pain accompany them. Can last up to half hour. If I take one or two shots of nitro when they start I can sleep through them but I feel like a train wreck the next morning. If I have a bad night I get random aches through the day that catch my breath. They seem to be triggered by anything or nothing at all although stress doesn't help. They are fleeting and I try to power through them or just sit quietly till they stop. The GP says I may have an unusual kind of angina and I see the cardiologist next month. I just wondered if this is common.