Diabetic Peripheral Neuropathy. Look it up. No cure. Damned few treatments for the symptom (intense pain).
Want a few concise descriptions?
-You are walking on a red-hot griddle;
-Insane gremlins are pounding red-hot spikes through your feet;
-Wild animals are rending the flesh from your feet;
-(My personal favorite): Someone has taken a belt sander and removed 3/8ths of an inch of flesh from the soles of your feet and you are walking around on the bloody nerve endings.
Sometimes all at once.
Neurontin. Reduces the IQ; makes you stupid and forgetful. Long-term use has been linked to pancreatic cancer in male lab rats. Oh, and I think they use it for 'chemical castration' of sex criminals; it has certainly taken the starch out of my noodle.
What's not to love?
--Boris