so yesterday i go to start my truck and the starter cant turn over the motor, the starter sounds extemly strained and once it gets going it barely stays alive, and i go to check my water level because i thought i could smell the heat from the engine, and after checking, there was nothing in my radiator, so after the engine was cool, i refilled the radiator, and started it up, still sounding horrible at startup, at watched all my lines...no leak so then after shutting it off, checked my oil level...was good, did not look milky, then opened up the cap on the valve cover for the oil fill, and the cap was filled with this milky colored cream of a substance, so theres a water leak somewhere internal and its not working its way to the oil pan, and also driving down the road i noticed a big cloud of white smoke coming out of the left tail pipe, but not the right, yet but its on the right side of the engine where the creamy milk like substance is...any help, because now my daily driver is down and im having to borrow vehicles...any help would be awesome!!! btw its a '79 c10 with a 350