Just as I thought, I am not highly sensitive, though I have a couple of these traits. I was quiet as a young child (hard to believe) and people thought I was really shy. Then, all of a sudden, when I was around 8-9 I became outgoing.
The only thing I have, that's "overly sensitive" is related to allergies/asthma. I have the skin thing, where I can't stand the feel of labels, seams, certain materials. It's kind of cyclical. Some days it won't bother me, but other days... I can only wear what I call my "cozy" feeling clothing. It will get to the point that I will get welts, or little red bumps, or just feel totally uncomfortable.
I remember being about ten years old and telling my mom I couldn't wear a pair of pajamas she bought me because the seams were "itchy." She just couldn't understand, took the pants, ripped them in half and threw them away .
I think I was carrying on a little bit.