I would do anything I could to feel better.
All that taking diazepam does for you is relieve withdrawal which is remarkably like neuropathy, and also like some horrible disease which leads one to think they are terminally ill.
http://benzowithdrawal.com/forum/index.php?board=6.0
Again, I can not reinforce enough, benzodiazepine interdose withdrawal is a medical situation.
One must call one's doctor and get a schedule to withdraw.
The only option if interdose withdrawal is occuring it to up the dose and this starts the cycle of constant increasing dosages of diazepam to relieve the symptoms of withdrawal.
Once one is off the drug, then one can be assessed.
No, diazepam is not a treatment for neuropathy.
It is an anxiety medication and muscle relaxant.
It is highly addictive, as you found out when you tried to stop. It takes about 3 days to enter withdrawal which causes severe burning all over the body, severe headache, severe neck ache, nausea, vomitting, severe muscle pain, buzzing, severe insomnia, etc. You feel like you will die for 2 weeks. Also, withdrawal requires management of the hypertension that comes with it. It sucks. This is likely what is plaguing you.
All people on these drugs develop physical dependence. Not addiction, unless they get emotionally attached to the drug. Non-addictive personalities will dump the drug if they know it is making them sick.
http://en.wikipedia.org/wiki/Diazepam
At some point, the doctor will stop prescribing it and you could find yourself doctor shopping. With negative medical tests, the doctors will get more and more reluctant to give out ever increasing doses of diazepam.
This is NOT a value judgment.
I have withdrawn from these drugs myself. I was given clonazepam for my restless leg syndrome, due to neuropathy from lupus, sjogrens, Lyme disease and a near fatal car accident. It is awful to be sick and then have to endure withdrawal to boot. A decade ago, I had to withdraw from xanax given for the same reason.
I am still sick, still in pain however, I don't have a drug making me sicker still.
People on this forum are trying to help you, but every one has to help themselves ultimately.
It takes great courage to face this. People get physically dependent on a variety of drugs given for medical reasons. For some people it is wiser to stay on the drug, for most, getting off of it is better.
Call a doctor willing to work with you. Not all docs want to deal with physically dependent patients, but most will help you get off, gladly.
No other drug will mitigate withdrawal, not neurontin, not SSRIs, Z drugs etc.