I'm trying to get on my Gmail account, and it won't load the sign-in page. Any help?

I signed out to look at my other account, then signed out of that account, closed the window, then opened Google Chrome again (I thought my sister was calling me…ugg). But this time (Gmail is the homepage that opens on the front), Gmail wouldn’t load. The little logo on the left side of the tab kept flickering. What is happening, why can’t I get on Gmail?