Indeed, for many years not only has it been very difficult, if not impossible to block out the auditory stimuli that I dont need at the time but often due to processing difficulties when really most of anything is happening along with the person speaking to me I must say 'what?' at least once, sometimes more to not only process what was said but also to formulate a response, sometimes I simply do not understand what was said to me because for whatever reason, be it over stimulation or whatever, cannot understand what was said and I often reply when I get weird looks or whatever that I am half deaf due to having many ear infections as a child.
In school my parents were worried I was hard of hearing, yet I did just fine on the hearing test, like everyone else that posted above. This is very difficult and only recently have I really understood what was happeing and have mitigated the problem a little bit, however I realize I will be this way for the rest of my life, as you all will be to most likly, another cold hard reality of being on the spectrum.
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DX'ed with HFA as a child. However this was in 1987 and I am certain had I been DX'ed a few years later I would have been DX'ed with AS instead.