Hi 
The abdominal discomfort may be due to 
stress,  sudden change in your sleeping habit and in your diet.
1.take pudin leaves juices added with jeera daily this will be very helpful for your complaint.
2.early morning drink green tea with out adding milk and sugar. Instead sugar add honey or jaggery. 
3.take fenugreek seeds 1teaspoon at night in a plain water.
4.avoid gas producing foods like cabbage, peas,  broccoli.
Do asanas like pavanamuktasana, padhastasana,  pachimotanasana, ardha 
chakrasana daily which will completely clear your symptoms.
Hope this answers your query. 
Take care wish you speedy recovery. 
Bye.