problem with differential amplifier

hi

i am doing a project where i have to sense dc current to the load and protect the load from over current using a mosfet and also ac current to the load and protect the load from over current using a triac

i am using a series resistor of 0.01 ohm for current sensing. i have to amplify the voltage drop across this resistor.
the problem is the load voltage is at around 12v to 15v fluctuating from a battery and the op amp i am using is lm358 with supply +5v and ground.

now when i use the attached circuit across the r sense my output was saturating so i am using a voltage divider and a voltage follower at both ends of the r sense so that the input voltage to diff amplifier is less than 5v but still i am not getting the output as expected i am getting a constant voltage around 200mv to 1v. 

pls help me to find the mistake i might be doing