The most common symptoms experienced by patients with HCM are dyspnea with exercise, orthopnea, paroxysmal nocturnal dyspnea, palpitations, episodes of lightheadedness, chest
[heartdisease.about.com]
AHCM can occur with varied presentations such as chest pain, palpitations, dyspnea, syncope, atrial fibrillation, myocardial infarction, embolic events, ventricular fibrillation
[ncbi.nlm.nih.gov]
Patients present at all ages with chest pain, dyspnea, palpitations, and syncope.
[ncbi.nlm.nih.gov]