wfc
you may need to up the patch potency.  they come in 12,25, 50 and 75 mg doses.  first time round the 25's worked okay but now I am on 50s.   Bear in mind that it takes at least 24 hours before the fentanyl gets into your system at full strength.  Plus I change my patch every 48 hours not every 72 hours, on my doctor's orders.  I found out that they never lasted the three days for pain relief.  Be sure to contact your doctors as getting pain relief is an important part of healing.
Charm