If your ECG is normal but you still have left-sided chest pain, it is often due to non-cardiac causes like muscle strain, acidity (Gastroesophageal reflux disease), anxiety, or costochondritis (inflammation of chest wall joints). The pain usually worsens with movement, deep breathing, or after meals in such cases. Try rest, avoid heavy/spicy food, and you may use simple relief like Paracetamol if needed. However, if the pain is severe, spreading to arm/jaw, associated with sweating, breathlessness, or keeps recurring, do not ignore it, consult a doctor or cardiologist for further tests like a stress test or echo to be safe.

With a creatinine of 1.0?1.7, Metformin is often still safe if kidney function (eGFR) is adequate, so it should not be stopped without your doctor?s advice. Using Glimepiride alone can increase the risk of low sugar, especially since your fasting levels (100?110) are already well controlled, and doses like 1?3 mg must be individualised. Given your past Myocardial infarction and mild kidney concern, the safest approach is to review your eGFR and medications with your doctor, as they may prefer continuing low-dose metformin or switching to heart-friendly drugs rather than increasing glimepiride on your own.