A squeezing sensation
Pain that comes and goes , especially with exertion
Some people mistake it for heartburn or indigestion , especially if the pain radiates to the stomach or back .
3. Shortness of Breath
If you’re suddenly getting winded during normal activity , or waking up gasping for air , it could be a sign your heart is struggling .
This symptom may appear even without chest pain and can occur while resting or lying down .
4. Sleep Problems
Many people experience troubled sleep in the month before a heart attack . This includes:
Difficulty falling asleep
