Fishy dick

So I was fapping, and I had a little juice on my head. I wiped it off, and I smelled something odd. My cock always smells weird, but I decided to sniff the tissue for some reason. When I did, it smelled like fish. BAD fish. Cocks aren't supposed to smell like a dirty vag, or a fish market.

No, I didn't have sex with a whore, and yes, I am uncircumsized.
I admit I don't clean it too often, either...

What the fuck should I do?