I have a WD 2TB My Passport external drive. I used it on my Macbook a month ago and it worked fine. I tried to use it...

Verdict: my WD is corrupted. How this happened is beyond me. I am more urgently concerned about my peace of mind to find that my files are still there, so I did not return or demand for repair anymore as that entire process would be more agonizing. I had it opened by a colleague and, thankfully, all my files are intact. I had them transferred to a new WD drive that was previously given to me as a gift. I doubt I will be purchasing another WD in the near future. I'm on the lookout for other brand options. Recommendations are most welcome! Thanks to those who replied. Truly appreciate your time and effort.