Personally i think it is a obsessive compulsive problem. I get urges to kiss people and it dosnt matter who it is and i try and fight it. Sometimes the more i try and resist the stronger the urge gets. Things like urges to kiss people or touch peoples necks in your case are refered to as obsessions. My obsession has become less and less over time (possibly due to my medication or psychotherapy) maybe afew sessions with a psychologist would help you find some ways to overcome your problem. Psychologists are not like Psychiatrists. Psychologists know about alot of techniques which they can tell you to overcome anxiety or obsessive compulsive problems so dont be scared about seeing one. I know in australia it costs $50 AU per session with a psychologist and the sessions go for around 45 minutes. Could be something you might want to consider as i believe it helped me out alot.

Roy.

Also i forgot to mention that another difference between a psychiatrist and psychologist is that psychologists dont hand out medication like psychiatrists do. A psychologist is only trained in therapy techniques and can not hand out medication. So u dont have to worry about them trying to put u on any meds.