Ok, I've tracked the issue down to no user/pass being able to access vCenter. I have to use Windows Session credentials (which is what I typically do when logging into vSphere Client and why I didn't notice it this morning). We're going to have to wait for a service restart and troubleshooting til tonight, but in the meantime admin@System-Domain works (I'm assuming since it's internal to SSO).
So now that I'm back in and running, to answer your original question, there are no alerts at the moment (I'm assuming after it catches back up they may return) for either issue however both the clusters and datastores all report 0 capacity/days remaining just as before.
~Brandit
Edit:
To update, after some digging, I've found this access issue is what happens when they don't let the VMware admin know the DC we were using for SSO died and they're currently rebuilding it. =)
Message was edited by: LikeABrandit