There is a difference between paresthesias and actual neuropathy. The word neuropathy means disease of nerves.

But nerves can react to things in the environment, low blood sugars, acid/base balance (hyperventilating will cause paresthesias), low magnesium or imbalance between magnesium and calcium. Fixing the trigger will fix the symptoms, hence there is really no DISEASE (or damage) present.

What happens in the morning? Well that is when your cortisol levels are highest. As 4pm approaches they dip considerably. Then there is a smaller rise after dinner, and the lowest level around 4am. So cortisol cycles this way every day. If your symptoms are higher at 4pm than in the morning it reflects this cycle to some extent.

You could be allergic to something in your environment, some food you consume alot of (gluten is one trigger, but there are others). Histamine response gives prickly sensations too:

More on histamine in foods:
http://neurotalk.psychcentral.com/thread161714.html

Some people react to MSG in foods too.. this can be a huge trigger if you eat out alot:
http://neurotalk.psychcentral.com/thread166327.html