Like with many sensory things, I can be one extreme or the other.
If I stub my toe or get poked in my upper arm, it's game over. I used to pass out constantly when I was a little kid...on one occasion, my grandmother was brushing my hair and hit a tangle...on another, my pierced ear got infected, and my mom had to use some force to remove the earring. It seems like sharp, unexpected pains are what get me. At the dentist, they have to give me 5-6 shots of Novocaine PER TOOTH, or I can still feel everything.
However, I have two tattoos, and actually found the sensation rather pleasant and not really painful at all. I can also bite down hard on my arms or hand, where it leaves deep impressions in my skin, and I barely feel it. I once stuck my hand in a bucket of ice for several minutes, and my opponent was in a lot of pain and had to give up...I was totally fine. If I find myself outside against my will in the middle of winter with no jacket, though, I'll be painfully cold and shivering.
I've found that with almost all of my sensory issues, if I'm in CONTROL, then the effect of the stimulus is severely limited. However, if I'm not in control or not expecting the stimulus, my responses are super heightened.
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Aspie Quiz: AS - 141/200, NT - 77/200 (Very likely an Aspie)
AQ: 34/50 (Aspie range)
EQ: 32 / SQ: 68 (Extreme Systemizing / AS or HFA)
Diagnosed with AS and Anxiety Disorder - NOS on 03/21/2012