What Causes Shivering In Neck And Fingers On Withdrawal From Restyl?

Hi im a hypertensive man with bp always around 170/100 Since frm the age of 15 taking stamlo beta. I hv also developed neuro fibromatis specialy cysts forming under my forearms which wouldd cause pain while sleeping. A doctor prescribed me restyl 0.5mg to have sound sleep. I hv been taking this fr past ten yrs and also hv incresed the dose as i continued to get less sleep. Nw i take a min of 2 tab a day stopping which my body behaves odd n starts shaking at neck and fingers. Plz advice. Where can i see ur answere.