I feel squeezing pain in the upper breast bone which is aggravated by cold and supine position. I also experience fatigue , dizziness , light headedness.
Could it be Angina?
I'm not a doctor, but the symptoms you described could potentially be related to angina. Angina is chest pain or discomfort caused by reduced blood flow to the heart muscle. It is typically brought on by physical activity or emotional stress. Cold temperatures and lying down can sometimes trigger symptoms of angina as well.
However, it's important to note that there could be other causes for the symptoms you're experiencing. Fatigue, dizziness, and lightheadedness can be associated with various medical conditions, so it's always best to consult with a healthcare professional for a proper evaluation and diagnosis. They will be able to conduct a thorough examination and potentially order tests to determine the cause of your symptoms.