Signing into your Netflix account and seeing a bunch of random shows in your viewing history is always a puzzling experience. Did you binge watch in your sleep? Did your significant other watch a show, then act like he or she had no idea what you're talking about? Or worse yet, did a friend or family member share your log-in?
While I can't help with you the first two scenarios, I can point you in the right direction in an effort to figure out if your Netflix log-in is getting passed around. As reported by Business Insider, here's what you need to do:
Sign into your Netflix account on a computer, then visit the Your Account page (or click on that link and sign in).
Next, scroll down to the My Profile section and click on Viewing Activity.
Here you'll find a list of shows your account has recently streamed, which in and of itself is an indicator someone is using your account. But a better way to check is to click on the "See recent account access" link atop the viewing activity page.
A popup will display a list of devices that have used your log-in credentials to access Netflix, and their respective location.
If you find a location or device that shouldn't have access to your account, you either need to have a talk with those you've shared your password with or you can change your password, effectively cutting off access.