I know it's been a while, but curious how this turned out. I have the same "hyperconcussability" feeling post-concussion (been 4 months since my relatively minor concussion), where minor vibrations / bumps are painful (or rather, I am extremely sensitive to them) and seem to set me back.

I mentioned this symptom to my neurosurgeon (a leading specialist in concussions) and he didn't seem to understand what could be causing such a feeling. I also noticed that no other responders to this thread seem to acknowledge this symptom, nor have I seen anything else about this in my (somewhat obsessive) internet research and definitely nothing in the more mainstream literature.

Thanks