Hey startrekker, thanks for the reply.
I am not sure if it counts as a sensory issue, but I do have issues with noise. In work, other people's conversations – which are taking place several feet away from me – can distract me. Interests is a tricky one. When I was a kid, all I wanted to do was program computers. When I went to school, this wasn't part for the curriculum so I neglected school work and everything else just to program. As an adult, programming is my job, so it stopped seeming like an "obsession" and more like a career. The only problem it causes me is that I have no other interests of any depth, meaning work people are the only ones I can have an in-depth conversation with (about programming, compilers, data structures etc. ).
Inflexibility is more of a tangible problem. In work, when things deviate from the original plan I get immensely uncomfortable. In the past, I employed strategies that now make me cringe when trying to get us to stay on the original plan. This sounds absurd, and childish, but in the interest of being honest... I tried to emulate Dr House (from the TV show). I used his sarcastic condescending antics (not proud of it one btw) to try to win arguments and keep things on plan. I'd say this aspect of my personality is what has caused me the most grief.
A diagnosis (or, indeed, being told it is not Asperger's) would provide some clarity. The main obstacle is that I would probably need parental cooperation, which I don't think they'd be very forthcoming with, and the financial cost.
Thanks again for replying. As usual, I list my circumstances only in the interest of seeing if they resonate with anybody else.