hi glad to here all is well I had this a few years ago with a jill of mine, suspected heatstroke so placed her in a good sized cardboard box with a warm hot water bottle wrapped in a towel at one end of the box and a dry towel at the other, with heat stroke immune system is low and without a little heat is open to a chill ,ferret can then move either end for more or less heat, rehydration solution like the lads said or dyoralite you would give kids can get it out the chemist little and often.