Continuing on in my research on the Highly Sensitive Person I have come across what is termed the Sensory Seeking Person. They may seem like opposite ends of the spectrum but may actually coexist in some people. Check out these links for the tests and see if you might be one or the other. Or you may be both or you may be neither. It really has to do with your nervous system and the environment in which you were raised.
I scored 25 on the HSP test and only 5 on the SSP test. Interesting stuff.