Fatigue, shortness of breath with rapid heartbeat are symptoms of what disease?

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Doctor, for more than 1 year now, I am often tired, exhausted, short of breath, heavy in the chest while sleeping, and have to wake up constantly. In the morning, I often fall into a coma, my heart beats fast, and I feel like I'm going to die. I went to the doctor but couldn't find the cause, I had to endure this condition for years and months, very miserable, and I also had symptoms of depression. What should I do now? Please give me treatment advice, thank you!
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Hello! Fatigue and shortness of breath when lying down are often symptoms of heart-related disease. However, doctors also see patients with cardiovascular symptoms but only due to feeling, not having any disease. If your symptoms have lasted for more than 1 year, then you should go to a reputable medical facility or hospitals under the Vinmec Health System nationwide, so that your doctor can check and give specific advice to you. friend.
Thank you for trusting and sending questions to Vinmec. Best regards!
Answered by Master, Doctor Danh Man - Department of Examination & Internal Medicine - Vinmec Phu Quoc International General Hospital.