It is natural for gas and bloating to occur every once in a while, especially after eating one of the typical culprits, like beans or ice cream. If you have painful bloating or excess flatulence daily, though, the issue may extend beyond what you can fix by changing your dietary habits.  Irritable bowel syndrome (IBS) affects your colon, and causes cramping and diarrhea when you consume certain foods.  Celiac disease is a digestive disorder triggered by taking in of gluten, a protein found in bread and other food products containing wheat, barley or rye.  Crohn's disease is a gastrointestinal disorder that can become severe if not treated effectively. If you have daily gas and bloating that causes pain or interferes with your daily life, call your doctor to discuss possible causes and solutions. Since gas and bloating are often directly related to what you eat, prepare to discuss your dietary and lifestyle habits with the doctor.

TL;DR in Chinese:
关注消化不良出现的频率。 及时就医。