Pain transmitting nerves constitute a minority among the entire nerve system. This explains why a vertebral subluxation can exist without any pain felt by the subject. That is the reason why one should not rely on how they are feeling to determine that all is fine. The usual greeting « How are you today? » is meaningless, only a chiropractor can tell that a person is doing well when the analysis of the spine shows it is clear of vertebral subluxation. It is smart to do a chiropractic maintenance check up!