What Are The Repercussions Of Missing A Dosage Of Methadone?

hello ive been on 140 mgs of methadone everyday for 12 years if i missed a days dose whats the worst that can happen O&ive been on benzo's for twice as long but thats a whole other story inever miss a days dose because i really start to get sick but everybody else miss doses all the time but most still use.ive been of painkillers for over 10 years & its no problem to go buy some idont know anymore im trapped i been trapped so long i think im scared of being free they took my kids i have nothing did i mention i live on a indian rezervation.sum time it feels like im dead an this is my hell .ps ive already been trying to taper off benzo's but anyway will i get sick if i miss a days dose?