question: i eat easily food,,but after eating,i feel,something stay in my food pipe,,ear/gas come out through mouth,,i force to come out gas which stay in my food pipe,,,i feel that,,,doctor give me gastic tablet,,,,,for 6 week,,,i use it and go normal,,,again n again come this problem .is it cancer syndrome?doctor say acid come out ,,when i sleeped.10 year i use tobacoo