My chest pains started up again about 2 months ago after 9 months without. I had one really bad attack, but then went for 10 days with hardly any. Thursday and Friday I had prolonged low-grade chest pressure radiating into the jaw when under stress at work Yesterday was OK, but today I had the same thing at church, the only provocation being that it is cold. This is getting scary. I wish my NHS cardiology appointment would come through.

Is this unstable angina?