The numbness and tingling at the back of the head and face can be referred to as having less or no sensation in the skin of these areas. This can actually happen to any parts of the body. The sensation may be felt or characterized as prickling pins and needles, creeping, and ant crawling [1].
the crime of solicitation must be proved by the testimony of at least one witness and corroborating evidence the crime of solicitation must be proved by the testimony of at least two witnesses or by the testimony of one witness and corroborating evidence
Depending on what type of criminal behavior the person was soliciting, recanting might also require notifying the police in order to prevent subsequent criminal conduct from unfolding. Often, evidence in addition to any testimony from the person propositioned is required in order to convict someone of solicitation.