Dear Lady,
Sounds to me as if you experienced a bout of viral gastroenteritis. Any viral infection can have a disconcerting systemic effect making you feel terrrible; the textbook term is "general malaise." You do not mention nausea and vomiting, but I assume this because of "dry heaving."
The chills and feaver come when a viral load is circulating in you blood stream. These are part of the body's defense; the muscle activity acts to increase body temperature in an effort to inactivate the virus. The temperatures you give are high but not dangerous.
In situations like you experienced, the primary concern is dehydration. The fluids you lost contain more than water and should be replaced with products like Gatorade. Gatorade was originally designed to replace loss frrom excessive sweating by University of Florida football players in spring practice, and it remains much better than water or the usual soft drinks for vomiting and diarrhea.
If you are really feeing better, the vomiting and diarrhea have ended, and you don't feel light headed when you stand up, you're over the hump. If none of this is so, best to consult your primary care physician since you may need more than a home remedy.
Thanks for asking us. Let me know if you need additional help.
Best wishes,
Teaching Doc
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