Probably a phish. Right click on the "read more" link and look at the URL. Either way, just log onto your real account and if the e-mail was legit, I'm sure you'll get some similar message upon logging on. I haven't gotten any Google phishes yet, but often get it for bank accounts that I don't even own lol..
Thanks for the reply, i check the email MX information it all looks real apart from the ip address which is 12.5.80.33 which does not match other emails i have from google.