Thanks for your question on Health Care Magic.
I can understand your concern.
Possibility of heart related disease is less likely but due to history of
general anaesthesia, better to get done ecg and 2d echo first to rule out heart diseases.
If both are normal than no need to worry for heart diseases.
General a can cause
gastritis. So possibility of gastritis is more for your symptoms. You also took
ibuprofen. This can also worsen gastritis.
So better to take
proton pump inhibitors. Avoid painkiller drugs. Avoid
stress and tension.
Avoid hot and spicy food.
Avoid junk food. Avoid large meals.
Drink plenty of fluids orally.
Don't worry, you will be alright.
Hope I have solved your query.
I will be happy to help you further. Wish you good health. Thanks.