I think that your heart is well and, even though you experience some
palpitations here
and there, your problem in not cardiac in origin. Many patients feel
palpitations, some are infrequent to the point where they get used to therm, others gets worse during certain situations or periods of life such as increased stress, menopause etc. Majority of the time the work ups are negative for any organic heart disease. Now you do have some gastritis, most likely related to your obesity.