what you need to do is lower your dosage of methadone. there is no reason for anyone, no matter what your level of opiate usage is, to be on such a high dosage. Methadone, is a very dangerous opiate. It has taken countless lives, with doses at only 50mg! You should work your way down, start taking 125mg the next day, then take 100, go down 25 mg a day till you get to about 75mg. You will feel kinda shitty, yeah, but its the only way your going to lower your tolerance. Once you get your dosage lowered, underneath 100mgs a day at least, then you can start to get high again. BUT, understand, you can kill yourself very easily by mixing any other opiate with methadone. People always laugh it off or say "my tolerance is high" but, ive seen it. Dude was perfectly normal, chilling, high, then he just fell over and died. Methadone mixed with heroin. Not tryin to preach to the choir, but, try to keep your dosage down, and eventually, you will be back to actually getting high off small amounts. imagine doing 10 mg of methadone and getting high?? wouldnt that be nice? it could happen if you had the determination to do it, and the will power. just bring it down a tad and youll be good bro, trust me. you wont die, just deal with the pain, and youll be straight..