Withdrawls

Been of opiate subutex 10 days today how long does this last? Taking ibprphen for pain seems to help but still having yawning and sleeplessness can't wait till this is over
Asked the same of my prescribing nurse today, 6 days in and she reckons I should feel day on day improvement from 8 days in. Hope you have picked up a bit, physical effects wise think day 4 was my killer