After abdominal pain, diarrhea

After abdominal pain, diarrhea

Question:

I am 25 years of age, male, remember from 15 to now every summer often after abdominal pain, diarrhea, pain when goose bumps are set up, but the bathroom is fine, feel empty, especially at noon meal, and eat eggs, oatmeal, if this morning to noon meal, I might have diarrhoea 99% very thin, 170 height, weight is less than 100 jins now distressed, and didn't know what to do, hope experts can help me, thank you!

Treatment:

This is caused by weak stomach. Available and scattered treatment. (white atractylodes