Ranger1930---Could it be nerves?
Ex:When I drag-raced motorcycles,at the dragstrip,I shook,like a
leaf,until I was "staged".Then,I was like you,poured ice water over my head.I can only attribute it to nerves.It never happened,
during street-races!They are illegal & I was too busy looking around,to get nervous!It sounds like nerves to me.I would consult
with a medical person.If you do something,that is life-threatening,
you don't want any nerve relaxors>(tranquilizers) Irish
P.S.Suggestion---I workout daily.It tires out your muscles.You say that you're a big guy,so that might help!

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Irish---Better to be dead & cool,then alive & uncool!
(Harley Davidson & the Marlboro Man)