DL misses (or PRs) take a lot out of you for sure...
Next time I hit a heavy DL PR or miss, my plan has always been to stop there.
A heavy miss has your CNS telling your body that it's at it's limit (for the moment at least) and will naturally restrict our abilities temporarily...
Point being, I'd say it's totally normal and you still did a sh!t load of work before and after!
Dec 2013: 365 SQ, 275 BP and 415 DL.
Dec 2014: 500 SQ, 350 BP and 550 DL.
"Trust the process"
"Just get stronger, you bunch of knuckleheads."
- Steve Shaw, MaB Founder