Thanks for your question on Health Care Magic. I can understand your concern. No, these symptoms are not due to fibromyalgia or neuropathy. Possibility of stress and anxiety related symptoms is more. But better to first get done ecg to rule out cardiac diseases. If ecg is normal than no need to worry for heart diseases. Stress and anxiety cause tachycardia, palpitation, chest pressure and heaviness. So better to consult psychiatrist and get done counseling sessions. Try to identify stressor in your life and start working on its solution. Avoid stress and tension. Be relax and calm. You may need anxiolytic drugs too. Don t worry, you will be alright. But first rule out cardiac cause. Hope I have solved your query. Wish you good health. Thanks.