Am I the only one?

About 4 months ago I was told I had something called vaginismus. Tightening of the vag muscles instead of a relaxing and its either really difficult to put something in or won't go in at all eg. Tampon all the way to sex. I reckon mine is due to past sex experiences and anxiety. Does anyone else have this or something similar because I feel alone in this and don't know what to do.