metallic smellng urine

So last week I ate two raw eggs, rather large, and late that afternoon my pee smelled like staight metal. It was NOT asparagus, I know that smell well. I have heard that ketosis will sometimes cause metallic smelling urine? Could it be too MUCH protein? I have not eaten them since.
I thought it might be attributed to chelation by chlorella, but have never experienced it again, and I take that everyday. thoughts?