Kindly consults for proper treatment.

Since how many days you are taking the medications that is important.some time what happens when you try to stop ur medication ,symptoms reappears which may also cause reflux.so we need to evaluate either it is because of drug or it is the symptom.Then we ll see the response ,if the response is good we ll try to control the side effects by other medications otherwise we ll change the medication.so it depends upon the scenario.don’t hesitate to consult a psychiatrist

It may initially few days you will be feel like that you may take anti acidity tab like pantoprazole twice a day , you will be adjust within few days so don't worry

Yes, stopping it can give, you can decrease it's dose instead of stopping