What's this feeling I get when someone whispers in my ear?

I get this strange feeling in my spine, it starts tingling, and the sensation runs up and down my spine.

Whenever someones breath touches my neck it starts feeling strange too, it's not painful, it's like being tickled but not at the same time.

It's makes me feel weird, and I've since refused to have anyone whisper in my ear due to how awkward and uncomfortable I feel.

What is this feeling? I feel sort of embarrassed asking anyone I know, so I thought I'd ask this on the internet, for the sake of avoiding something that could wind up being awkward.

So please could you answer my question?