Dorado... and teeth

Okay so I remember teething with Tide being an ordeal and all, but I DO NOT remember this!!! Dorado is driving me crazy he is FINALLY sleeping now, after ALL day being UP. He shoves his fist in his mouth, screams, whines, drools and chews... all day long! I am up every 2 hours, if I'm lucky, at night... still! He is happy if I hold and coddle him for a period of time then looses his shit again... I do not know what to do... I have tried cold things, chew things, every-thing... He only enjoys shoving his fist in his mouth, gagging himself and biting down to the point he screams because he almost breaks the skin. SIGH.