Does this mean someone else is trying to log into my Facebook account?

[~]

Here is the message I've been getting couple times already:

"Hi _____,
Sorry you've been having trouble logging into your Facebook account.

Get back on Facebook now

You can also get password help or login help on Facebook.
Thanks,
The Facebook Team"

It says this message was sent to my email at my request. Which I did not do.

So it has to be someone that knows my email address right? If I change my email address will it prevent them from trying to log into my Facebook account?

[john]

Yup they send this email for a reason if your deactivating your account or someone trying to log on I suggest to change your password

[Mars]

Maybe you have forgotten your password or misspelled it.