I'm trying to make sense of some health concerns and could use a bit of guidance. I recently had an abnormal ECG that showed RBBB with sinus tachycardia, and my CT angiogram revealed 0 calcium deposits. But I'm still feeling some discomfort in my chest and experiencing breathlessness. Could I still have some kind of heart problem even with these results?

1) Despite the absence of calcium deposits on the CT angiogram, it is still possible to have a cardiovascular issue. Given your symptoms and abnormal ECG findings, further evaluation is necessary. I recommend starting treatment with a beta-blocker like Metoprolol (25-50mg) to help with the sinus tachycardia and chest discomfort. 2) The chest discomfort and breathlessness you are experiencing may be related to your cardiac condition. In addition to the beta-blocker, you can also take Aspirin (81mg) daily to reduce the risk of cardiovascular events. However, it is important to follow up with a cardiologist for a comprehensive assessment and management plan.