Hi. and welcome to the GERD forum.
It may be possible something in the generic med could be causing the issue..talk with the Pharmacist at your Pharmacy as to how the generic was compounded....I doubt it is the active ingredient as most times they are the same....
Is the dosage the same?....Maybe you need to step back on the meds...?
Talk to your Dr as some changes to your condition may be changing.....
The dosage is the same and I will take your advice and talk to my Pharmacist about how the drug was compounded. Thank you so much for your time!