Is it weird that I never get ill?

So I always see people with colds, sore throats, people losing their voices, blocked up noses, migranes, all kinds of illnesses.

I've never had a migrane, lost my voice or had a sore throat in my entire life. I've probably had like 4 colds in my memorable existence. (Not including infancy)

The last time I was properly ill, was in around 2008. When I had swine flu.
I've never taken any pain killers. I don't know if this is common, or what.

Do I have a natural immunity to illness, or something?
Is it weird that I never get ill?
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