I haqve this sensation of bubbles mostly in the left side - some times on the side, sometime just under the rib cage...Had two incidents of Atrial Fibrilation and feeling Ectobeats - but when this happens I dont feel like a hear rate related (no shortness of breath or chest pain etc.)
Thanks for your question on Chat Doctor. I can understand your situation and problem. Feeling of bubbles in left side of chest is commonly due to either gastritis or due to arrhythmia. Since you had history of atrial fibrillation, better to first rule out arrhythmia in your case. So get done ECG, 2d echo and Holder monitoring (24 hour continuous monitoring of ECG). If all these are normal than no need to worry about atrial fibrillation or arrhythmia. Gastritis can cause gaseous distention of stomach and this can give bubble feeling in chest. So take proton pump inhibitors. Avoid stress and tension. Avoid hot and spicy food. Avoid large meals, instead take frequent small meals. Don't worry, you will be alright. But first rule out arrhythmia. Hope I have solved your query. Wish you good health. Thanks