Welcome to HCM
We understand your concerns
EKG is said to hold true or valid upto at least 6 months. Therefore you don't have to worry much. Also you should be sure that the flutter and pain are due to acid reflux
which you are diagnosed with.
Therefore don't worry unnecessarily. Garlic and ginger before or alongwith food should certainly help you. Also do some rigorous exercises. Never drink water along with food. Drink water before and after 30 minutes of food.