I think you may be right - the stomach acid may be what she is feeling. I haven't had stomach noise problems yet. I don't think it would bother me though.
It is a tool - you should not be eating those unhealthy foods. I had VSG 7 months ago - I just now started taking small bite of "Bad" foods - Maybe I am just to scared to regain the weight. I have lost 80 pounds in less than 7 months - but I really watch what I eat and I exercise at least 3 days a week. I know it is hard - but try to stay away from those types of foods. Good Luck,
I am 7 months post surgery and just recently felt hunger pains - maybe it is a different feeling - After my surgery I did experience "different feeling" - Good Luck.