5. Dizziness and Cold SweatsThe poor circulations is also causing the blood flow to your brain to be restricted. This is very life threatening. This will at first cause dizziness and clamminess. You should not ignore this. 6. Chest PressureIf you are having onset symptoms of a heart attack chances are you have been experiencing discomfort in your chest, whether it’s minor pain or built-up pressure.This will constantly increase until the attack itself happens. 7. Flu or Cold SymptomsIf you feel as if you are having flu symptoms out of nowhere this could be because the attack itself is about to happen within the near future. Many people feel they have developed a cold just days before their attacks.How to handle this:If you or someone you know is experiencing these symptoms, please see a doctor as soon as possible.The best way to prevent a heart attack is by noticing the symptoms early on.