Digestive 
Blood
Cardiovascular
Dermatology
Genitourinary,
Hormones
Infections
Oncology and
Musculo-skeletal
Mental health and
Parasites
Respiratory
Senses
Various
Chest pain is the most common symptom of a heart attack. Pain intensity is not important, the key is to detect symptoms.
The pain usually lasts more than 20 minutes. It is possible that rest and medication (nitro-glycerine) do not relieve the pain of a heart attack 100%. Symptoms can also come and go.
Other symptoms of a heart attack include:
- Anxiety.
- A Cough.
- Fainting.
- Dizziness, vertigo.
- Nausea or vomiting.
- Palpitations (feeling like your heart is beating too fast or irregularly).
- Shortness of breath.
- Sweating, which may be very heavy.
