My HDD is going to be 4 years of age as of December this year(if it survives for that long).I have been getting really slow download times for some time now but I brushed it off.As I am writing this my disk is peaking at 100% for no apparent reason, it does this from time to time.Also it would freeze without anything more that a few tabs of chrome open(not even that much sometimes).I ran the WD Digital Data Lifeguard Diagnostic to see if it would pass.After two hours and a full scan it passed all the tests.I was downloading an episode of a show and the download speed was peaking at about 3mb/s.I am currently downloading a game and it has peaked at about 15mb/s.Is my hard disk dying?