My son has been experiencing abdominal pain, cramping, excessive gas, nausea and vomiting.  He has lost weight and is not eating very well.  I have had blood work done, but today when I was doing the stool culture, I noticed long hairs in his stool.  Is this normal?
HI. This is not at all normal. It is possible that he has a psychiatric problem wherein he may be taking hair = a condition usually seen only in females. Get his USG, Endoscopy, Barium meal tests done to find the cause and get a treatment accordingly.