Sometimes you have to give subs a few days and still go through some of the sickness.
When I first got prescribed subs again back in February I pretty much just had to be sick for a week even with taking suboxone. I was still vomiting, having severe stomach pain, getting hot & cold flashes, feeling cold inside often, sore, and wasn't sleeping. Didn't have an appetite and couldn't hold food down for 4 days.
Just had to go through it basically. In my 10 years of using the last 2 years was my longest run, my highest tolerance, and the longest I ever maintained such a high tolerance. The subs DID help on those days, but not that much. Still basically just had to be sick. Was going to have to do it no matter what if I ever wanted to be clean, at least with sub I was able to stabilize and get myself back to normal after those first 4 days.