Painful Intercourse Support Group
Dyspareunia is painful sexual intercourse, due to medical or psychological causes. The term is used almost exclusively in women, although the problem may occur in men. The causes are often reversible, even when long-standing, but self-perpetuating pain is a factor after the original cause has been removed.

Yes, this does sound like it could be vaginismus and, if so, the good news is it's very treatable. The best approach is to get counselling from someone trained in sexual issues but you can also do some self-help stuff. Sensate Focus ( http://counselling-matters.org.uk/sites/counselling-matters/files/SensateFocus.pdf ) may help, though that's not it's primary application. Take things very slow and gentle.