Asperger's, introversion or highly sensitive person?

I was diagnosed with asperger syndrome a couple years back (I am a 25y/o woman), however the more I read about highly sensitive people as well as introverts (& I already know alot about introversion), the more I wonder if the psychiatrist misdiagnosed me? Is it possible do you think ?

I'm aware you can totally be an aspie who is also an introvert, but is there a way to know for sure?

Also asking because i notice that on quite a few occasions (such as in asperger groups on fb) i find it hard to get on with other aspergians. So i do wonder...

Thanks

I know I for one am both Asperger's and highly sensitive, so that's a very possible combination