My brother has been diagnosed with shingles, but ive been paranoid since watching a doco on smallpox

(its kinda similar symptons, only obviously smallpox = a squillion times worse) about it being something more....
He seems to be in quite alot of pain, with headaches, nausea, the shooting pains from the rash, and a slight fever.....
are these all normal symptoms of shingles ?????