If the pain's awful l would go to A&E they can get scans when required. Probably best during working day rather than overnight. They have more consultants during the day. 
l hope you feel better soon 

susie

More likely to get another xray, an ecg etc than a ct. They will not give you a ct because you ask them to. They'll treat you for chest pains and run tests that focus around the heart etc.

With it being A&E, CT's are usually required for those who have been in bad accidents and need soft tissue injuries etc looked at.

Not saying they won't give you a CT, but it would be the treating consultant that would order the scan, not because the patient asked for one. A CT would only probably be offered to you if something was flagged up on the initial xray.

I take it you've had heart checks?