My husband had a cold aproximately a month ago. Once he started feeling better, his cough persisted. He coughs and coughs until he is red in the face and most of the time he vomits up liquid and sometimes food he has just consumed. Then his coughing subsides. The doctor said his lungs are very clear. My husband's dad has GERD though. So it may be a weird version of that?? I have Gerd but it is diagnosed. My husband doesn't have heartburn ( which is what I suffer from) but he has occasional indigestion.