Hello I started to have acid reflux since last year and a half I took pantoprazole for 2 months based on what the doctor said, and then I stopped for a few months. Now i'm taking lansoprazole 30mgs for the last 2 months. If a day comes and I forget to take my medication, I feel stomach pain and cramps and some bloating. I have no diarrhoea or constipation, normal bowel movements, no weight loss or loss of appetite, sometimes dark stool but I think it's mainly from the food, h.pylori tested negative. Also stomach pain and cramps also come if I eat spicy food even if took my medication that day. Just acid reflux and pain and bloating when I forget my medication or when I eat spicy food. Can you please help me with what are the possibilities? As in what is the differential diagnoses?