Paresthesia can also be caused simply by putting pressure on a nerve by applying weight (or pressure) to the limb for extended periods of time. Another cause of paresthesia may be direct damage to the nerves themselves, i.e., neuropathy, which itself can stem from injury or infection such as frostbite or Lyme disease, or may be indicative of a current neurological disorder.
Checking for Ketones. Ketone is a chemical produced when there is a shortage of insulin in the blood and the body breaks down body fat for energy. Ketones in the urine is a sign that your body is using fat for energy instead of using glucose because not enough insulin is available to use glucose for energy. Ketones in the urine is more common in type 1 diabetes.
Ketones are a waste product that can spill into the blood or urine when the body is burning fat for energy. Fat is burned when there is no available glucose, the body is starving. The glucose is there but there is no insulin to get it into the cells. You can test this with a strip that you dip into a urine sample.