honestly dude, you are like totally maxed out on your opiate dosages - even if your doctor doesn't think you are. This is because you are getting a large amount of Dilaudid a day and making it way stronger by injecting them all.
I would say your best bet is to try and cut a little out each day until you are at a lower dose, or maybe even using them properly. I don't know, man, you are kinda up the shit crik without a paddle. If you could find suboxone or something a 1-3 week break could really help.
Are you using adjunct therapies like e-stim or accupuncture or EMDR or anything?
Acupuncture literally cut in half the amount of opies I needed because it produced so much better analgesia for at least 5 days to a week after a session. I can't encourage you enough to try this, especially since it sounds like you have a complex pain syndrome that isn't necessarily localized, so getting a traditional 5-point acupuncturist would help so, so much.
It is also someone outside of your pain management doctor who you have confidentiality with, so you don't have to pull any punches with questions about IV use, addiction, etc, and it is someone who if you NEVER lie to, can really, really help you in ways that most people wouldn't think possible.