The shakiness, neck stiffness, tiredness, dizziness, constant headache should rule out a viral meningitis which may have no fever. So your doctor need to reexamine him and get the blood tests repeated with consideration of the spinal tap (spinal fluid examination). The initial investigative work in the viral illnesses may not show any significant abnormality and it need to be repeated. Apart from the counts, a comprehensive metabolic panel (CMP) also is essential. Apart from viral meningitis this can be just viral abdominal infection, which may be transmitted during travel. This is a self limiting illness usually in 5-7 days but occasionally may take almost 10 days to resolve completely. The management is as following;
2) Lomotil; may only be given if the diarrhea is vigorous.
3) Gatorade / Pedialyte
4) Plenty of fluids
5) BRAT diet; banana, rice, applesauce, toast. Vegetable broths / vegetable soups, coconut water also can help.
Please feel free for your follow up questions.
I would be happy to assist you further, if you need any more information.
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