steer you in the right directions for STARTERS. By 'starters' I mean that it's really too soon to say if you are anywhere NEAR getting diagnosed?
For starters I suggest you read the second 'Sticky' at the top section of this page. It's chock full of info about PN and diagnosis.

I think we all begin to panic when we get 'numb' thinking the worst such as MS. But many neuropathies are similar in the nerve destruction process to MS only in MS the problem happens in the brain, ours happens at the nerve 'ends'. Any really good neuro diagnostic workup is the process of eliminating the diseases that CAN be readily diagnosed, then they work down the 'problem tree'.
Read these sites and I hope they will help you understand the basics of the exam, and also how PN among other things are zeroed in on.
http://www.neuroexam.com/content.php?p=2 and
http://www.aafp.org/afp/980215ap/poncelet.html
In addition, check out the worksheets at www.lizajane.org for an outline of all the likely and less likely tests that and/could be done in the testing for various neuropathies. Be sure to get copies of your tests and other report results!
This should help you as you go down the medical diagnosis pathways we all have gone down. I know that mid-July seems a long way away, but it'll come faster than you know! Keep your anxiety down as low as possible. Stress never helps such things for sure. Do let us know how you get along and are faring! - j