For context, my project for the last six months or so has been completing NVHM deathless with each character individually. The order I went in was Gaige, Axton, Maya, Zero, Sal, and last but certainly least... Krieg.
The first win took two months or so, the next four took a combined two months or so, Krieg alone took about 2 months. Why am I saying all this? Well, getting 5 deathless completions gives you a very very good feel of the game, especially how much damage you should be taking, how fast you should be going down, etc.
Now it goes without saying that Krieg has shit survival perks and his action skill does nothing to save you if you're close to going down (until level 31 ffs), but that's not what I'm talking about. I got all 5 of the other characters done within a 3 month span, including 3 winning runs back to back, then progress ground to a screeching halt with Krieg. I was dying at level 6. Level 10. Took like 15 attempts when I had already mastered the run.
Something about him, even when perks and action skills are barely relevant, resulted in the muscle memory I had acquired over all the runs... Getting me killed. Like the numbers I was seeing on my shield and health bar weren't giving me accurate information about how close I was to death.
Am I gaslighting myself, or does he take more damage for some reason?
I'm just going to go ahead and add a little extra detail here, for everyone who wants to come in and say "Gee mister, have you considered that you don't know how to play him?" I beat the game deathless with him. I played as him for two months straight. I know how he works. He feels like he's slagged.