Different types of heart disease and different periods of heart disease can vary in their clinical manifestations and even lack the necessary specificity. If you want to self-test for heart disease you can start with the following: 1. Observe whether there is significant edema in both lower limbs, at which point you should consider whether a heart disease condition has occurred. 2. Whether the patient has frequent exertion, feels tired, sleepy, loss of appetite, or has significant symptoms related to chest tightness, shortness of breath, and wheezing after light activity. 3. Certain heart diseases can manifest as arrhythmias, and the patient may Patients may experience paroxysmal panic attacks, chest tightness, and irregular pulse rhythm when they check their own pulse, which may also indicate the occurrence of heart-related diseases. Of course, in terms of self-testing heart disease, the most important thing to do to confirm the diagnosis of heart disease is to combine electrocardiogram, myocardial enzyme profile, and imaging tests to further clarify.