what is remedy for gas in stomach?

I am 28 yrs healthy male. Before 5 days everything was normal but suddenly I started feeling acid in my stomach after taking medicine also it is not cured.
I have just left eating rice and spicy foods and taking salad and chapatis only. Symptoms are as following
1.sometimes moving pain from shoulder to back and neck and side of belly and chest.
2.while swallowing foods like chapati and rice gets hick-ups .(not in case of salads)
3.seems that gas will release but feels like trapped

please guide me for this your help will be very appreciable.

Take 1 teaspoon of grated ginger mixed with 1 teaspoon of lime juice immediately after eating.
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