I can't give you any advice about your personal issues but if you're experiencing physical withdrawal from the buprenorphine there are some over the counter remedies you could try.
Loperamide (Immodium AD) is actually an opioid but it is void of any psychological effects since it does not cross the blood brain barrier. You'll probably require a dose higher than recommended but it will likely help ease the withdrawals.
Something like ibuprofen can be taken along with it for general aches. Melatonin can be used to help you sleep, along with some good bud.