I'm really worried about my 37-year-old brother. He's been having this mild chest pain for a few months now, right in the heart area, and it sometimes radiates to his arms and back. We had an ECG, a TMT which showed a borderline positive at 10 Mets, and an echo doneall normal, and the coronary angiogram was normal too. The local doctor said it's non-cardiac and just gave him painkillers, but I'm not so sure. Could this be microvascular angina since the TMT was mildly positive and the angiogram came back normal? The pain just comes and goes for him, and it's really concerning. Do you have any advice on what this might be?

Based on the symptoms described and the test results provided, it is possible that your brother is experiencing microvascular angina. In such cases, medications like Ranolazine can be prescribed to help with the chest pain. The usual dosage for Ranolazine is 500mg to 1000mg twice daily. However, it is important to consult with a healthcare professional for a proper diagnosis and treatment plan.