Why do arms and feet sometimes sting for no reason?

1, it may be rheumatoid arthritis. It hurts when the weather changes, and it can be detected by laboratory tests (early fasting). It may also be caused by cervical spondylosis, and arm pain may also be caused by cervical hyperplasia or nerve compression. Can be detected by CT.

2, it may also be neuropathic pain, just eat something that regulates nerves, and the problem is not big.

Suggest a check-up. There are many reasons. It's hard to judge. You can't make a 100% correct diagnosis online. Don't eat indiscriminately. Why? It varies from person to person, so the best way is to go online, find a director level, thoroughly check, completely cure, and completely rest assured. What did you say?/Sorry?