Gas leading to suffocating at nights.

Hi I faced breathing suffocation problem at nights 10 days back .but after pandop tablet for gas it got fixed and I looked good for another 3 days and after 3 days again suffocation started after eating and i took pandop and aristozyme which helped me for another 5 days without any symptoms.but yesterday nyt I faced sudden suffocation and little chest pain like burning sensation.suddenly I do  continuously burp and aristozyme is not helping now .what to do ? I couldn't sleep at nights due to this .the suffocation problem is not for the entire day but it is happening at regular intervals and I am getting tired.what medication should help me for not getting the same problem again and again. I am on healthy diet for past 10 days but took citrus acid in meal by mistake. I took bananas and yogurt.can you please suggest any medication as gas related treatment is not affective