You may have a MacBook Pro with the Nvidia GPU issue. Please list the last three letter of your serial number so we can check which graphics processor you have. This is being covered by Apple and a class action lawsuit. I'll go further if you qualify.
Never mind about the serial number, it qualifies. I looked up all the Books with these model numbers and yours qualifies. Contact Apple here and tell them your MacBook has the Nvidia GPU issue. They will ask for your serial number. They FedEx you a shipping box overnight. One day shipping and one day to repair and ship it back. Total time is usually four days. You get a new logic board. Sometimes a DC in port and flex cable also and sometimes a new battery connector. All at no cost to you. Here's where to call:
Should they try to balk, which I doubt, ask if you should sign up with http://www.nvidiasettlement.com
That will tell them you know what you're talking about. Do so if they refuse.
Hopes this solves your problem.