Are you taking medications, and are you male or female? Slow blood circulation (being cold) and diarrhea are common side effects.
Wilderness acquired diarrhea
Wilderness acquired diarrhea (WAD), wilderness-acquired diarrhea, wilderness diarrhea, or backcountry diarrhea, is diarrhea that is caused by pathogens that have infected people when they were in the wilderness. It is a much-discussed hazard among backpackers, hikers, campers and other outdoor recreationalists who visit remote areas of the developed world. Risk factors include insufficient washing of hands and food utensils and drinking untreated surface water. Cases of WAD tend to be self-limited and the specific cause (microbe) is most often never known. Based on both systematic and less formal reviews of epidemiologic data and literature, some researchers who have studied the topic believe that the risks of WAD have been over-stated and are poorly understood by the public.
Diarrhea acquired in the wilderness or other remote areas is typically a form of infectious diarrhea, itself classified as a type of secretory diarrhea. These are all considered forms of gastroenteritis. The term may be applied in various remote areas of non-tropical developed countries (U.S., Canada, western Europe, etc.), but is less applicable in developing countries, and in the tropics, because of the different pathogens that are most likely to cause infection.
Waterborne diseases are caused by pathogenic microorganisms that most commonly are transmitted in contaminated fresh water. Infection commonly results during bathing, washing, drinking, in the preparation of food, or the consumption of food thus infected. Various forms of waterborne diarrheal disease probably are the most prominent examples, and affect mainly children in developing countries; according to the World Health Organization, such disease account for an estimated 4.1% of the total DALY global burden of disease, and cause about 1.8 million human deaths annually. The World Health Organization estimates that 88% of that burden is attributable to unsafe water supply, sanitation and hygiene.
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