 [ Symptoms ] what are some of the warning signs to stop sex right away [ Disease ] similar to any type of exercise if you begin to feel symptoms such as chest pain shortness of breath fatigue dizziness or palpitations it definitely makes sense to slow down what you are doing whether you are a man or woman if you are pretty certain it is angina which is temporary pain or pressure in the chest when the heart does not get enough oxygen it might help to take your nitroglycerin the exception to that advice is for men who use medication for erectile dysfunction    it is dangerous to take nitroglycerin too your blood pressure can fall to dangerously low levels and there is an increased risk of heart attack and even death if you are on an erectile dysfunction drug and have heart related symptoms during sex call your doctor