My mother has been suffering from acid reflux. She constantly complains of having a choking feeling in her chest area and her stomach feels weak & empty. Could one or the following medicines be a contributor to her acid reflux? Levothyroxine, Lovastatin, Nifedipine ER, Furosemide, Diltiazem. She is currently taking Famotidine & Sucralfate to help with the acid reflux issue, but nothing seems to be working. She feels good one minute and the next she is in discomfort. Please help!