Burping never used to cause me to be concern until it became so painfull. First of all it stars like a back muscle ache. Then it feels like air is knotthing up in the wind pipe and finally coming up again and again for a while.
I had test previously and I had helicobacter. From reading on this site about other people experiences, I believe that this could be associated with the bacteria in my stomach. But I also noticed that sometimes I also get it after when I inhale wind while taking my pills and having water.