Hello,
Thanks for the question.
From the details provided, there seems to be two different issues.
1. If there are associated stomach complains like epigastric pain, vomiting, reflux or pain in stomach region after eating then inserting nasogastric tube can help. But if I was to be your treating doctor, I would first like to try medications like antacids and anti-emetics. These are over counter medications and you can try them if you also have the aforementioned symptoms.
2. Cardiac palpitation which is an uncomfortable and unusual awareness of the heartbeat occurs due to mismatch or disturbances in electric impulses in heart. Most cases are harmless and don’t need treatment.
There is no direct relation between food intake and occurrence of palpitation unless you have a pre-existing palpitation / arrhythmia. A detailed evaluation for palpitation or arrhythmias should be undertaken to this out. A primary evaluation with electrocardiogram (ECG) can help to evaluate the condition. If at all a static ECG is normal, a 24 hours ECG monitoring can help in this case. Another investigation which can help evaluate heart function is 2D-echocardiogram.
I would suggest you to see doctor for clinical evaluation and consider getting the investigations done. In most cases medication can provide good symptomatic relief. Once diagnosis is confirmed an appropriate treatment both for heart palpitation and gastrointestinal complaints can be done.
Please go through my answer and if there are further questions, please feel free to ask.
Regards