She consumes massive amounts of soda (two liters at a time) plus she takes caffeine pills, all day long. She is cold and clammy to touch sweats alot!?

Who is "she"? Caffeine abuse is a medical condition, and is listed in the dsm-iv together with other forms of drug abuse. Whoever "she" is, it sure sounds like this is a case of severe caffeine abuse. Caffeine raises blood pressure and pulse, can produce anxiety, tremor and even agitation and psychotic features. If this is a loved one or friend, strongly suggest medical evaluation, and tapering of caffeine.
Caffienism. She has a condition called caffienism. Too much caffiene. She should see her doctor.