Methadone Hydrochloride and sweats

Been on Methadone tabs for 9 yrs. I gained 130 lbs, have edema in my ankles and feet for the past 8 yrs, I have an endocrine problem (pituitary gland doesn't produce testosterone anymore), I'm itchy all over, I get drowsy, and I have hot flashes. I think I should get off this drug and deal with my chronic pain. At least I'll lose wieght, stop itching, lose the edema and aching feet, maybe restore my endocrine system balance, etc....
Whata ya think?

I have been on Methadone for approx. six months for a second time and i have been getting extremely clammy and i sweat and have heat attacks so severe, i'm so afraid of this summer, afraid i might have a heat stroke. It seems my body cannot control my heating system. Someone suggested i might be starting menopause, but i do not have sweating spells unless i'm moving around or even standing ,or if it's hot, not like hot flashes in the middle of the night for no apparent reason. Also i have always had the best blood pressure, now i have high blood pressure since using methasone for pain control and i have to take Toprol. Doctors think it's just a coincidence but i know it's the meth and i am slowly weaning off. I just hope my body can return to normal. Has anyone had these same problems.