Extra Rib on Lower Left Side?

It looks and feels like I have an extra (mildly weaker) rib on my lower left side. Is this weird? Does anyone have the same thing? What you you guys think... let me know. Google hasn't been helping, they typically talk about extra ribs up near the collarbone, which is not what I have.
Extra Rib on Lower Left Side?

Extra Rib on Lower Left Side?

Extra Rib on Lower Left Side?
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