Today it quite easy to analyze VMs on Azure and check current status. This blogpost shows needed steps to get understanding of VM health.
First, login to new Azure portal https://portal.azure.com/
Let see some nice things what you are able to do. For Linux Virtual Machines, you can easily view the output of boot diagnostics on your console log from the Portal.
Audit logs. You can see all events:
Resize VM with one click: