The beating of the heart makes a strange noise, which is a bit like friction and creaking. With pain, these conditions will appear when you lie down. When you sit up, you will feel much better. You feel short of breath and decreased vital capacity. At first, lying on your side is like water. There is flow in the heart. This has only happened once. You woke up at 3 pm yesterday and went to bed at 5 am today. You don't feel strong before going to bed. Now you will have symptoms when you lie down, Sitting will also feel shortness of breath, decreased vital capacity, and the heart beats about 70 times a minute
The heartbeat is normal. If there is no other discomfort, such as palpitation, chest tightness and chest pain, there will generally be no major problems. It may be related to the reasons of neural regulation. You can relax your mood and do more exercise without thinking about it. Generally, there will be no harm. Don't worry. You can carry out conditioning and observation in these aspects.
According to the symptoms you described, I don't think this situation has much to do with the heart. This situation may be costochondritis or intercostal neuralgia. In addition, it may be cardiac neurosis, so you can go to the hospital to see a doctor for examination and then treat the symptoms. This situation is not the problem of the heart itself. Always get enough sleep and don't stay up late. Reasonable diet and nutrition. You can go to the hospital to see a doctor.
Your should be that even if you do an ECG, your vital capacity decreases with your heart rate. It may be related to poor rest, staying up late or tension. If you feel some physical discomfort and do not alleviate it through timely conditioning, you must make a detailed examination, make a clear diagnosis, monitor whether the heart rate is within the normal range, and you can accept arrhythmia.