With all the DDoSs going on...there sadly might be a chance that there might have been a rollback with your VMs. I'm not sure, but that might be it. Supposedly it's been happening with posts too; you'll have to bear with it if that's the case.
Posts weren't rolling back for me but all I know is that when I clicked the index it loaded pretty fast and the notifications were gone. I checked my private messages box but it wasn't there and I checked my VM's and there was nothing new.