think u r thinking along the rite line, but not exactly right
on.
our body temperatures do not change - we are not amphibians!
water has high heat capacity. hence a storage of water in the form
of urine retains a substantial amt of heat. when this amt of heat
is released from the body in a short time, i.e. when urinating, the
body reacts by shivering, jus like when a chilly wind blow on us.
we lose heat and hence the shiver. but our body temps do not
change.