Your stamina will drop severely, as your body is in the middle of fighting off infections with enzymes, white blood cells, and antibodies.
After my head injury I have cold sensations internally
Frostbite
frostbite
Immediately after - cold; When injury subsides - heat for healing.
An icepack is more effective for reducing inflammation and pain in an injury compared to cold water. Icepacks can provide targeted and sustained cold therapy to the affected area, which can help decrease swelling and numb the area to relieve pain. Cold water may not maintain a consistently low temperature or provide as much direct contact with the injury site.
You can buy cold-weather flying at level 68.
Hypothermia
It learns sheer cold at level 60.
The pH level of cold water is typically around 7, which is considered neutral.
Injury from exposure to extreme cold
Frostbite
Alternating hot and cold compresses, and rest.