IANAD, but I've never heard of anything like this (especially so long post-op).

This is one for your surgeon. It may be a hernia. We aren't doctors though. Ask a real one.

I had a bilateral orchie which resulted in the cords becoming “tethered” (an actual medical term) in the healing process. Meaning the sectioned ends of the cords became attached exterior of the inguinal canals. In my case, the surgeon did not section the cords as high as possible so they would retreat up into the canals during the healing process. Because one of the sectioned ends became swollen, much like a small testicle about the size of a thumbnail and was under constant pressure for being stuck between the base of the penis and the inner thigh, I was in constant pain. I couldn’t pull things back to tuck (Edit: could not push the ends back up past the inguinal rings, into the canals), and was taking the maximum dosage of Tylenol daily. I ended up finding Dr. Karen E. Boyle who performed a resection and I have been pain free since. I’m sorry to hear your hurting. I know it hurts like all git-out. Best and 🤗’s❣️