Don't think so. You are "allowed" to not like being around people; it would only be a problem if you wanted to be around people but were afraid of rejection (avoidant personality disorder) or angry all the time and picking fights (antisocial personality disorder). I'd just say you don't like being around people. Lots of people prefer to be alone.

Here's the National Institute of Mental Health's page on personality (social) disorders: http://www.nmha.org/infoctr/factsheets/91.cfm