I noticed that too. It was like after the opioid wore off my body was calling for more by sending more pain signals. I found that if I could get through that day, then the symptoms would either go away or be tolerable. I just had a spinal cord stimulator placed and although I’m only about 10 days post op and I am still in the period where they are adjusting the location and intensity, it looks like it is going to help a lot. Possibly not eradicate the pain entirely but, make it more in the background. And my energy has noticeably improved! That is something I never fully appreciated, how much of an energy drain pain is!