Globus sensation, burping and a burning feeling that started right after your iron tablets is a common reaction, more likely reflux triggered by the iron than true H. pylori infection or LPRD on its own. But stopping the iron completely after two days has left your anemia untreated, and a
ferritin of 4 needs correcting.
Next Steps
Ask your doctor about switching to a different iron formulation or taking it with food, since that often settles reflux-type side effects. If the globus feeling continues, an upper GI endoscopy or H. pylori test can help find the cause.
Health Tips
Please don't leave the anemia untreated for long, since a
ferritin this low needs correction one way or another, even if the tablet form changes.