Ive had two episodes of bad chest pressure and pain radiating up both sides of my neck, into both shoulders and to my elbows in both arms, once when mowing and once while walking. During one episode I was short of breath. I had a nuclear stress test and the first part of the test showed something but the second part of the test was ok so they said everything was ok. I have mild pressure at times when exercising. Sometimes I will exercise and when  I stop I will have mild chest discomfort. I have several people in my family with heart problems . My Dad was 43yrs. Old and his sisters were in their 50s.
Thanks for your question on Health Care. I can understand your concern. At present, no need to worry about heart diseases because your nuclear stress test is negative. But better to get done ECG, 2d echo and stress test annually to know your heart condition. In my opinion, your current symptoms are mostly due to stress and anxiety. So better to consult psychiatrist and get done counseling sessions. Try to identify stressor in your life and start working on its solution. You may need anxiolytic Chat Doctor. . So avoid stress and tension, be relaxed and calm.Don't worry, you will be alright. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.