Hi, i got this Macbook pro 13' like 4 months ago. Corei7 2.9 Memory 8 GB 1600 MHz. And recently, since 2 weeks ago, the fan became loud, and heat up easily but the spin speed is normal as 2000rpm. I only use my macbook for like studying, surfing internet, nothing weird. So what's wrong with my macbook? Thank you!!