Chest tremors, feeling of heaviness and tightness in the chest ...

Hello, I have felt some tremors in the chest as if some muscle, artery or vein was moving involuntarily and sometimes these symptoms have been accompanied by a feeling of weight and tightness in the chest, I do not feel pain.I already did electrocardiogram and did not present anything, already I took radiography of the lung and also gave nothing, would it be a gastric problem? What kind? What do you think, doctor?
Expert answer:

I do not know what your age or your history for heart disease, but triggered Anxiety and / or Depression are the main causes for these symptoms in a young person and no risk factors for heart disease.

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