(It wasn't just you)
Gerrit was down today starting around 17:49 UTC. It is now back up and services are coming back online.
A full investigation into the cause of the outage is still on-going.[0]
Apologies for the downtime.
WMF Release Engineering
[0] https://etherpad.wikimedia.org/p/gerrit-outage-20161006 But this is missing a lot of the information/discussion that is happening in #wikimedia-operations on Freenode. A link to the incident report will be pasted into that etherpad when it is created.