Is my hard drive failing?

Solution
It certainly sounds like it. I would recommend making sure that you've got your data backed up on a different drive, then check to see if your drive is still under warranty. If it is, contact Toshiba customer service and request an RMA.
It certainly sounds like it. I would recommend making sure that you've got your data backed up on a different drive, then check to see if your drive is still under warranty. If it is, contact Toshiba customer service and request an RMA.
 
Solution