Have been on methadone for 5 years started on 30 mg and ended up on 165 mg started a 3 mg taper a week got down to 115 mg and stopped taking it all toghter the first 10 days were the worst felt like dying now I'm a month into it and still can't sleep more than an hour at a time severe headaches and severe anxiety holding strong and still not taking anything can't go through this again does any one know how much longer this feeling will last