Idk if it's stress anxiety or heat attack i'm 24 and i feel horrible chest pain weakness and scared !

See your doctor!: Heart attack incidence at age 24 is close to zero but you have a serious anxiety issue. You would be well advised to seek professional help.

See your doctor: Anxiety attacks can cause many physical symptoms, including chest pain, weakness, and others. Many people with panic attacks go to ER's because they are frightened like you. You first need a good health evaluation with your doctor -- this includes physical exam and diagnostic tests to rule out other causes for your symptoms. Psychiatrists & psychologists have good treatments for anxiety.