Recently, my intestines keep boiling continuously, at first I had diarrhea, I went to the pharmacy to buy it, I stopped having diarrhea but my intestines were still boiling. After that, I went to the toilet but there was phlegm, I went to buy medicine, the condition subsided, but I still had a boil and went to the toilet with a bad smell and a bit spoiled. These days, because I'm almost graduating from school, I stay up until 1-2 am every night. For the past few days I have been feeling tired, chilled, but no fever. It only burned its hands and face, and its body ached. Did the doctor tell me what is a symptom of stomach upset? I hope the doctor can help me.