I answered one of your questions farther down but didn't realize you are on
methadone.How long and what dose are you taking methadone????After 6 years you're not going to get a buzz off a weak opiate like
hydrocodone,it will just bring you down (dysphoria).The methadone is 50 times stronger than hydrocodone and it also has a very long half life so you don't get the fast buzz that you are looking for.
The methadone molecule is quite large and other opiates like hydrocodone just can't get around it and get into the opiate receptors.So really your wasting your time taking the hydro's.
Why don't you tell your doctor you are addicted to the hydro's and see if he will put you on strait methadone.When you get to the proper blocking dose on methadone then you will have no cravings or withdrawls.
One other thing, benziodiazepines are very dangerous when taken with methadone and you would be much better off not taking them.Good luck....Dave