hello you yourself have mentioned about the cause of your problem . so it's better to avoid the hotel food .....consuming it everyday will deteriorate your health . if at all its unavoidable   to take hotel stuffs..then have very light easily digestible  food like rice or curd rice ....... u need to avoid spicy , heavy food,  fermented food like dosa  etc ... drink cold milk at bed time everyday . drink sarisaparilla  juice every morning before breakfast. ..this juice is available  in  ayurvedic  medical  stores.