I was exercising, outside in the hot weather yesterday, I was out for a few hours only working hard for about an hour and a half, had a cuppa, a long chat and by the time I got home I felt like I had been pulled through a hedge, backwards by a team of horses that were well versed in such techniques.
It took until the next day and drinking a lot of water and pills until I started to feel somewhat better and 24 hours later am still feeling the effects.
The only thing I can put this down to is dehydration. I am not a great one for drinking water, I do but in moderation and usually only in the summer, tea (de caff) is my favourite.
What with the effects of heat, medication and working to get ourselves about, many others may be effected. How much do you drink?