I've had this laptop for a few years, but for the past few months it's been randomnly shutting down for no reason. I have noticed that it mostly shuts down when I try to move it or pick it up and if I switch it back on immediately after it shuts down then it takes a lot of time to boot up. However, it never shuts down when it is charging or connected to the charger. Also the laptop gets heated very quickly and no air comes out of the vent located right below the charging port anymore. Please recommend a solution.