### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Hello. My son is three years old. For the past 15 days, he has had GI issues which include intermittent severe ABD pain, occasional vomiting, diarrhea alternated with constipation that is yellow and green in color, and lethargy/weakness.... He had had episodes of pain so severe that he is doubled over, and is unconsolable. He has been seen on four occasions, the first of which intusuception was ruled out. WBC looked ok on Sunday, and both CDiff and parasites have been ruled out. I KNOW there is something wrong with my son, and the doc is not listening to my concerns, but is blaming constipation. He was up from 10pm last night and could not get comfortable enough to go back to sleep... he vomited once last night, and had three pretty normal looking BMs, but that did not seem to eleviate the pain. He is now dry heaving. please help... what else could this be?

### output:

Thanks for putting up your query at Chat Doctor. I understand the cause of your concern and have gone through the details carefully. I would give you some suggestions. Try to follow them.1. Give the child rice based diet. Avoid any wheat based product altogether. The abdominal complications could be result of a condition called celiac disease. Try this for a few weeks and see if the child gets relief.2. Avoid milk based products. Curd or yogurt can be given. Lactose intolerance could also be a cause.3. You may give demonic syrup SOS in order to relieve abdominal pain as and when it occurs.4. Constipation needs to be kept in control. Increasing fiber content of food is a must. Include green leafy vegetables in the diet. Fiber supplements like Isabel can be given on regular basis. Greenish stools indicate rapid transit through the large intestines and is not a cause of concern.5. Using lactulose syrup (available in brands like lively, cephalic) will help in keeping the stool soft. I hope that helps. Take these measures and feel free to revert with further queries if any.