Felt fine then got a sharp twinge in upper left chest.then head felt stuffy,eyes heavy and tired.any insight?

Unclear: Chest pain can be a symptom of heart disease but may be may other things such as esophageal spasms, great vessel disease, respiratory disorders (asthma, COPD, bronchitis, infections), and muscle problems to name a few. It really depends on the clinical situation and other symptoms you may be having. your symptoms seem to be It may be more of a upper respiratory problem.