Gas pain in chest

Meelien

20+6 days. Have excruciating gas pain in chest that's hurting both in chest and goes till mid back. No abdominal cramp. Going on and off since yesterday night. Some burping relieves the deep pain in chest for some time then I can feel the pressure building up. Haven't taken any medication. Did anyone else have the same? How did you manage. I don't want to take too much antacid.