Got overheated Saturday. Overheated big time. Too much time in the sun, too much dehydration from sweating, not enough liquids to replenish the body.
Heavy duty muscle cramps most of the night. Legs, arms, ankles, even hands. Continued even after downing several bottles of water and eating bananas.
Spent Sunday recovering, mostly sleeping, drinking lots more water, flushing out system.
Better now? God I hope so. Getting old is a bitch.
Camelbak hydration packs let you carry several liters of water on your back and help to prevent dehydration. It may feel dumb for a while but I was surprised by how much more energy I have (at 57) when I can keep hydrated.