I said the same thing when I first heard the word 'Vaginismus'. When I called to ask for therapists or doctors that deal with this condition I would have to spell out the word and explain what it was. I experienced extreme frustrations, highs and lows during my process of overcoming vaginismus.
Vaginismus is a condition which affects a woman's ability to engage in any form of vaginal penetration, including insertion of tampons, the penetration involved in gynecological examination and sexual penetration. This is the result of a conditioned reflex of the PC (pubococcygeus) muscle. The reflex causes the muscles in the vagina to tense suddenly, which can make any kind of vaginal penetration either painful or impossible; in my case it was impossible. These spasms resulted in serious anxiety, panic attacks, and depression.
There are two types of vaginismus. Primary vaginismus is the inability to have intercourse for the first time. The spouse or partner will feel like he is hitting a wall. Primary vaginismus can include the inability to use a tampon, have a gynecological exam and / or have intercourse. Secondary vaginismus typically occurs later in life. A woman could have had the ability to have intercourse pain-free, but due to medical issues, child-birth or surgeries the woman ends up suffering from vaginismus. There are a lot of great sources to learn more about vaginismus and I would recommend doing so if you haven't already.
Please feel free to leave any questions or comments you have on this topic. I have helped a good friend overcome vaginismus following my success and am open to helping you out if I can.
Best of luck to you! Just remember that you CAN overcome this.