Critical hits hurting character

Has anybody else have the issue where landing critical shots on bosses returns damage to your character? This keeps happening and it’s really frustrating when trying to defeat a boss. Most of the time I’m just downing myself. I’m lvl 50 gunner playing on mayhem 3.

I think there is a mayhem affix that reflects projectiles so you end up damaging yourself too. Not sure if it’s specifically because of this but I had this issue too.

Yep. Its this. But it seems like it’s applied to the enemy you are damaging. It’s like 33% of all damage is reflected back to you. But it’s like 33% of all enemies will reflect damage back at you. Because ever third or fourth time farming Graveyard this happens