Lenovo — Complaint about my Laptops USB3 slot

Address:

632014

The USB 3 slot in my laptop - Lenovo G50-80, Model No.: 80E5. has stopped responding suddenly OR is acting weird. And by that I mean that when I connect my USB mouse, it's light glows but the cursor doesn't move; not only this but when I connect any hard disk : the light in hard disk switches on but it does not read or write, it doesn't show in My Computer that any hard drive is connected.
I tried this thing with different drives and most of the times it fails to recognize.

Plus the lappy gets extremely heated (the area right of the mouse-pad) when I start heavy multi-tasking (like using MATLAB, Multisim and Chrome together) (that is OK) but the thing is sometimes it even gets heated while I'm just listening to music.