I've Been Having A Lot Of Discharge Lately. Everything I

I've been having a lot of discharge lately. Everything I go to the bathroom there's more and more. And it had a weird smell it doesn't smell like fish but it's not an okay smell either. And it doesnt itch and doesnt hurt when i pee unless i dont drink a lot of water that day. Ive been putting on a tampon so I can see what color it is bc when I wipe it's white and creamy. When I took out the tampon it was white but where it was accumulated it had a greenish tone to it. What could be causing this?