Uneasiness and sleeplessness attacks
Feeling uneasiness where your oxygen levels drop to discomfort and lead to a stage where you are unable to take rest, relax or sleep may be due to a heart disease.
You may feel like getting out and about for fresh air but still unable to feel better or enough air. You may experience a weird agitation with leads to anxiousness. These are signs you must not ignore.
There are histories of people having had sleepless nights for months before they suffered a heart attack. So if you notice an uncontrollable sleeping dilemma or a baffling middle-of-the-night waking with a racing heartbeat accompanied with unexplainable thoughts or feelings of anxiety please do not ignore them all.
Just discuss with your consultant.