just a lack of physical condition.
It happens because the heart no longer pumps enough oxygen to the muscles.
2. Needing more pillows to sleep on
Sleeping almost sitting up in order to breathe is a sign called orthopnea.
When your heart isn’t pumping well, fluid builds up in your lungs when you lie down.
3. Waking up at night drowning
If you wake up suddenly with a feeling of suffocation and must sit up to breathe, it may be nocturnal dyspnea, a serious alert of the heart.
4. Extreme