No problem, but going by your pain scale I would toss that out of the window. The whole point of BF running is being able to listen and interpret what your body is saying. If you feel pain or some weird feeling I would stop.
BFR will help your form because you can't cheat it. Your body will know if your right or wrong. Try to carry that same form into your VFF running as well. That is a good thing that your job will allow that. Mine won't so I had to buy a pair of NB Minimus's for this work term.
Congrats on your race and hopefully soon you'll be able to do it all BF!!