You could have a sodium channel mutation (such as SCN9A) that makes you highly pain tolerant, but lidocaine-resistant[0].
It's a known syndrome, and may be associated with ADHD symptoms, episodes of intense skin flushing or redness (erythromelalgia) and epilepsy.
0. https://www.healthbusinessgroup.com/2008/01/11/what-causes-a...
Other medical sources:
https://www.ncbi.nlm.nih.gov/books/NBK1163/
https://www.ncbi.nlm.nih.gov/books/NBK481553/