Oh, the bugs are my favorite. I get those all over. We walk in the woods a lot since the dirt paths are easier on my feet and legs than asphalt or cement and I am always asking my husband to check for ticks ( there is a joke, and, I believe, a country song in there ). Since my neuropathy has spread I get the crawling bugs feeling everywhere.
The Gabapentin does help me with the burning, zapping, and buzzing feelings, so they are usually under control, I notice if I miss a dose. Muscle spasms and pain from the weakness are much bigger issues for me now, but the symptoms that you describe were my introduction to neuropathy. Clumsiness, odd gait, and poor coordination as a child were earlier indications which were ignored.
Be sure to take a list of your concerns and let us know how the tests turn out. I hope that you find some answers. This can be a very frustrating and painful disease.