Panic attack symptoms
Heart attacks and panic attacks are pretty difficult to differentiate since they share pretty similar symptoms such as tightness in the chest, dizziness, shortness of breath, sweating, and a pounding heartbeat. However, one thing is certain: those who suffer from panic attacks are more likely to have a heart attack.
If you think that your panic attacks are getting worse, seek professional help.
Intense back pain
Not all of us would associate back pain with heart issues, and still, doctors suggest that intense back pain could be a lesser-known sign of a heart attack. In general, the pain spreads from the chest, locating in your upper or lower back, so make sure you call 911 as soon as you start feeling it.
P.S.: Women are more likely to experience it than men.