What are signs of a bad heart?

Many possible: There are many warning signs. Having chest pain is a common one. Also, if you get chest pain while walking or exerting or if you get short of breath. Sometimes it is just that you have difficulty breathing, or even having problems lying flat because of breathing problems. With all the possibilities, i would suggest talking with your primary care physician about your symptoms.

Bad heart?: Not sure what you mean by bad heart. Main symptoms with heart failure, i.e. Weak heart is shortness of breath, swelling ; fatigue. In general, heart disease may cause a variety of symptoms such as above, or chest pain, palpitations, dizziness, etc. Heart disease may not cause much symptoms at all until more advanced. Individuals at risk should be evaluated and managed to prevent heart disease.