Maintaince

Hi everybody...I am on 60mg of Methadone... I am on MMT (Methadone Maintenance Therapy) ex heroin addict.
I don't feel right.Since of start of therapy,I am suffering from some side-effects like ... Major lethargy,common headaches  , DISPHORIA (instead of euphoria) , non-abitious , and i cannot concentrate on my literature that i have to study for my collagde... So, what is your suggestion? In 2 days I am visiting my doctor to discus whether or not to rise my dosage (whether or not it is about my dosage or really side-effects) and I think its BOTH..I need higher dosage ( i was on about 4-5grams of Heroin from Kosovo per day)... and i think Methadone is not right for me...I really would like Jurnista (hydromorphone) but it is only prescribed for people with cancer.So...what do you think?Is there any chance for me to get Jurnista? And what do you think about my symptoms and rising dosage...?
Thank you all.