Dear Kathi:
It's more allydonia than hyperalgesia but you can throw them all in the mix. Your nerves are automatically firing signals to your brain & overloading it w/ info. The pathways aren't restricted to the peripheral nerves so we also have the muscle pains, cramps, spasms, etc. I think this is what you described as mechanical pain. Stress worsens some of the symptoms so that's why klonopin helps. I don't take neurontin or lyrica as neither helped w/ my RSD pain. It's a complex condition which there really isn't a treatment for since it's not fully understood yet. Take care & good luck.
Gramps