Can ibs cause burning pain in stomach? took prilosec for 14 days but burning pain is back. tested negative for h pylori

Heart Burn: Hi, you probably have Functional dyspepsia or non-ulcer dyspepsia, which is common in IBS, the treatment is change in diet includes avoiding fatty food, Alcohol, Caffeine, frequent but small portions, avoiding food which makes the patient worse, PPIs or H2 blockers but Antacid like Tums (calcium carbonate) won't work , one can consider Tricyclic Antidepressant if above measures not helpful. Feel better.