Do you have a wireless mouse? sounds like that mouse has some issues since everything else is just working fine.
No it's usb. I did saw some weird things like when I unpluged the mouse and then plugged it back in it started to install the driver but it appeared as a gaming keyboard instead of gaming mouse like previously. And sometimes I can click but the mouse icon doesn't appear. but I have a dual boot system, and in the second OS I haven't found any issues with the mouse.