I was told by my neurosurgeon that I have Guillain Barre Syndrome since May 2011 following a stomach flu . I developed severe neuropathy symptoms with this and have numbness in both legs. I have tightness and pressure in my shoulders, chest and trunk. I am not diabetic but the neuropathy prevents me from everyday tasks and the numbness even prevents me from walking because I cannot feel the ground. I had a SSEP test done today. Will this tell me for certain if I have GBS? Also, how do I get any relief from this neuropathy? I already take Cymbalta, Neurontin and Oxycodone , and I attend physical therapy 3 days a week but with no relief at all. I also have back pain and facial numbness. Does this sound like Guillain Barre in your opinion?

Summarized question: How can I confirm Guillain-Barre syndrome ? What is the treatment for this disease ?