Opioid resistance CYP2D6 gene

Just seeing if anyone else has opioid resistance? I’m immune to morphine even before I had PFS I had surgery and it did nothing and recently I had surgery and they gave me oxycodine and it did absolutely nothing. This could be an issue with CYP2D6 gene that has to do with how we could metabolize medication, maybe that could of been an issue with propecia how we metabolized it.