Awful taste in my mouth

Ladies- WHAT IS THIS?! Lol

My mouth tastes like a garbage can, no mater what I eat or drink I can’t get rid of it. I brush frequently and that honestly makes it feel worse. Mints relieve it for the time they are in my mouth then it’s bad as soon as the mints gone.

It makes me feel nauseated & makes food just seem unappealing.

I’ve heard of metal mouth but this doesn’t taste like metal, more like ‘gahhhh’ lol no idea how to describe it…am I alone in this?