So glad you are feeling better, it's no fun adding yucky on top of pain and what else we deal with.
I overheat on a regular basis due to Addisons and no longer having my adrenal gland, I've been on 125 or higher fentanyl patches for 8 years and I med dump a lot according to my doc and pharmacist. My body is actually use to day 3 typically being without meds and I just sleep a very deep sleep.
When I first went on the patch I was used to sleeping with a heating pad when I had a sick migraine. No one warned me not to so first migraine hit and I grabbed my trusty heating pad, 3 pillows, thick comforter and made my protective cocoon.
My husband was finally able to wake me after about
18 hours. I was talking out of my head, acting like I was drunk and couldn't stand up. A trip to ER, blood tests confirmed I.had 3 days worth of fentanyl in my system.
My heating pad shuts off after an hour, don't know how much I may have turned it back on but it couldn't have been much in the last 12 hours of so.
I have med dumped from being in the sun to long, sitting with my back. (and my patches) against the heater, camp fire, running a fever and as I said from overheating from my Addison Disease.
That being said I am not typical, my husband and doctor like to tease that if anyone is going to have a reaction or side effects it will be me
I just wanted you to know it can happen but my understanding it doesn't happen a lot with "normal" people.
Have a blessed day,
Chronic Migraines, Fibromyalgia, Spinal Stenosis, Addison Disease, Interstitial Cystitis, Lupus, Thyroid Disease, Central Sleep Apnea, Degenerative Disc Disease, IBS, Uundifferentiated Connective Tissue Disease, Restless Leg, Sjogrens Syndrome. Wow, I'm tired.