Wait how long after the shot of hydromorphone did you ingest the suboxone? Once your in PWD you gotta ride it out. IMO its always best to start with a low dose of subs (mg or less) when you are switching from a full agonist to the partial agonist then over a few hours increase your dose up to however much you think you may need. You may feel some PWD symptoms but after 2 hours they start to diminish with the addition of more subs. Of course you can't do this now, so really just be a bit more careful with your timing next time because there is no way to get out of the PWD unless you have a opioid with an extremely high affinity (enough to knock out the buprenorphine from the receptors) say fentanyl. Take a warm shower, jack off, run, smoke weed, take a benzo, etc.