I recently started using DriveDx to check up on the status of my hard drives and my internal iMac hard drive's showing data transfer errors which have increased since I first ran the test a month ago. It originally showed 14 data transfer errors and a week later it went up to 15. Now a few weeks later I'm showing 19 data errors. Should I take the computer in for a check up or is this not something to be concerned about? Overall status is still showing as Good.