My dad is 66 and had a CABG around 16 months ago. He's been really diligent with his exercises, simple yoga, and diet as advised by his surgeon. Lately, though, he's been having sudden pains on the left side that extend to his wrist, fingers, chest, upper back, and neck. Using ointment seems to help after a bit, but these pains have become more frequent. The doctor mentioned it might be muscle pain, but since it's been 1.5 years since his surgery, we're getting worried. Can you offer any advice on what might be going on?

It sounds like your dad may be experiencing angina, which is chest pain or discomfort that occurs when the heart muscle doesn't get enough oxygen-rich blood. Given his history of CABG surgery and the symptoms you described, it's important to take this seriously. I recommend discussing with his doctor about the possibility of increasing his anti-anginal medication. He may benefit from medications such as Nitroglycerin sublingual tablets to help relieve the chest pain. It's important to follow the prescribed dosage and instructions for taking this medication. If the pain persists or worsens, seeking medical attention promptly is crucial.