While away you may have food poisoning or have picked up a viral or bacterial infection. You could feel sick, could be vomiting, have diarrhea or all the three at times.
Most of the travelers suffer from constipation, mainly due to dehydration or a dislike of using a strange loo. Most bugs last about 24 hours but if vomiting continues, or have fever, or stop passing urine then you have to immediately seek medical attention.
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