Update your post to include full system hardware specs and OS information.
Include PSU: make, model, wattage, age, condition (original to build, new, refurbished, used)?
All disk drive(s): make, model, capacity, how full?
As for "dying" unknown at this time.
However, if you have not already done so, be sure to backup all important data on that drive at least 2 x to other locations away from that drive and host PC.
Verify that the backups are both recoverable and readable.