I also began to feel very sick to my stomach, lightheaded, shaky and just unwell. The doctor said it was from the stress test in general but looking at the other patients in the waiting room during their break I find this hard to believe. I was very ill and here it has been a week later and still feel sick and my blood pressure is still sometimes as low as 92/50. I have never had a problem with my BP until that moment. I was having the test due to bradycardia and now ironically my heart rate is higher. Now during any type of exercise I get short of breth,chest pain under my breast bone, shaky, lightheaded,and numb around my mouth and hands …Any ideas?