This has happened to me a few times. I am woken in the middle of the night with a band of pain around my chest - like I have been lassooed - I cant lie down, or sit - have to walk around and nothing relieves it - I am in a lot of discomfort for at least 2-3hrs. I thought I was having a heart attack. The 2nd time it happened I called NHS direct and they sent an ambulence - did and ECG which as clear - and they suggested that it was a panic attack. This has started again - wondered if anyone else had experienced anything similar or had any advice on how to relieve?