Did Prot warriors get nerfed recently?

So as I write this (Dec 8) I ran 4-5 Mythic dungeons last week, and now I've run two M+ Dungeons (The second a dawn breaker that got bricked cause of the pools on the first boss) I feel squishier than last week. Like last week I rarely dropped below half health, and now I feel like I'm constantly one bad GCD from bricking a key. Was the jump in difficulty that large, or are Warriors squishier than before?

The dungeons from last week were +2s, +3s and a +5, this week I ran a +4 mists, and barely made it through, and as I just said, a +5 dawn breaker where we didn't even make it past the first boss before the leader left.

So yeah, that's all I guess. Did warriors get nerfed or am I just bad? TIA.

Edit: I forgot it was fortified week. I'm an idiot. Ty all