Dear doctor, I vomited for 7 times two weeks ago due to food poison. 5 days later, I started to feel a lump in my throat. The feeling of lump goes away in the morning and when I eat. However, the feeling gets stronger in the evening. It really bothers me during the night time. I was suspected that it was GERD, but I don t get any heartburn during the day. It s just my throat. Especially when I eat something with mint my throat and upper chest feel like burning. Sometimes the feeling of lump goes away and there s just a burning feeling on my throat. The feeling of lump increases when I move my head right or left. Can it be hiatal hernia? Thanks,