try slowly tapering your daily intake of hydros and then when its low enough you should only have very minor withdrawals,but for that i would recommend if you have a doctor or go to a clinic and explain the sitaution they will give you
clonidine, which will help with the chills, sweats,
and blood pressure spikes. a benzo, usually valium or lorazepam, used for a short period for extreme anxiety, cravings, and the muscle cramps/sapsms.