Hi I understand your concern. Heart pounding, palpitation, rapid heart rate, sweating, tremor. all are the symptoms of anxiety. If you have anxiety problem then may be it is exagerated anxiety that produce all symptoms. You have to go for routine check up for heart. 2nd start medicines that helpful to reduce anxiety. medicines This condition can be treated with mild dose of benzodiazapine and mild dose of SSRI in SSRI mild dose of escitalopram, sertraline and paroxetine like drug is very useful. some natural ways to treat anxiety and daily stress are exercise ,meditation deep breathing and hyperventilation proper sleep and healthy diet. Stress free activity,do pleasurable activity,music and hobbies Discuss with friends Confidence all this will help you to counter daily stress If require then consult psychiatrist and get help. Thank you.