Is it possible to still have degenerative paws after 10 years of off of 80 mg of methadone, after being on it for 17 years and coming off of it to fast like in 1 months time.Still have feeling of restlessness and don't sleep more than 4 hours and always feeling confused and very hard to concentrate . wake up after a deep sleep feeling like my heart is beating 100 miles per hour and other symptoms of withdrawals.