Funny feeling when somebody touches me?

GunsN'Roses

New member
Have you ever had the feeling when you're on a roller coaster, and you go down a hill .. It's like that weird butterfly feeling in the bottom of your abdomen? Well that is the feeling I get when somebody unexpectadly touches me. It goes down to my pelvic area, and it causes me to jump because it is such an odd, strong feeling.

What can be that cause of this?
 
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