what causes walking on pins and needles?
Neuropathy/Vascular: The main causes of pins and needles are the following: neuropathy (usually from diabetes or alcohol use), impaired blood flow, or metabolic causes such as changes in calcium or magnesium. Some medications can cause pins and needles-a common medication would be topiramate.
So, when excess pressure is placed on a nerve for a few seconds to several minutes, the nerve loses its ability to conduct its electrical signals. This initially manifests as decreased sensation in the form of a pins and needles, tingling, itching, and/or painful sensation.