Hi, I'm running 10.9.5 on a Mac Book Pro. My Seagate OneTouch 4 has been behaving weirdly for the past weeks. A few weeks ago, it started to disconnect itself when going to sleep and I couldn't mount it back. I disconnected the USB cable and power cord for a couple of hours and then it was fine. After a couple of issues, it was ok for awhile. And now it disconnects itself randomly even when I'm using it e.g. playing music from it. I can disconnect the USB cable and power cord for a couple of hours and then it's fine again. It's been occuring every day for the past three days. Should I be worried? PS: I've already backed up everything.